18 Brother-In-Law And Sister-In-Law Horror Stories That Sound Like Literal Nightmares
We recently asked the BuzzFeed Community to tell us the worst thing their sibling-in-law has done. Here are the wildest stories:
1."My SIL created a donation campaign for her father, who had recently passed away, to pay for funeral costs and fees. She used the money for trivial things for herself like a new gaming system and fast food. When bills came in for the funeral costs, she admitted to spending the money and said she’d handle it. There are still bills coming from the funeral home about the overdue, completely unpaid invoices. I can’t forgive her for that."
2."My husband and I met through his sister, and she has hated me since we got together. When he and I were 15, I got pregnant and had a stillbirth. I was going to name him Jessie, and three months later (she was 23) she named her son Jessie. I still can barely be around her son and her, and her son is 17 now."
3."My sibling's wife slept with my husband."
4."I had a SIL announce the death of my grandfather on social media before I found out. I was heartbroken that she felt it was appropriate to do that before the rest of the family was notified."
5."My wife admitted to her family that she has a problem with alcohol after she got drunk and pushed me once. Her sister said that she must have pushed me because there were underlying issues with me, and essentially, I deserved it. We tried to explain that we are in counseling and working on our marriage and my wife is working through her alcohol problem, which would include setting parameters around going out (our counselor’s suggestion) to help her be more successful. My sister-in-law got upset that they can’t go out drinking anymore and blamed me. She told me, 'This sounds like a you problem.' Then she said, 'Fuck you' and left."
6."My SIL told my twin nieces from an early age that I needed anger management. Of course that had an impact on how the twins interacted with me. One Christmas she laughed at my mother when my mom started crying after opening a gift that contained a framed picture of one of her brothers that had passed many years before."
"She also frequently made fun of our Baptist religion. She would not allow either of my brothers to be around the twins alone, as she considered all men to be pedophiles and said as much to the twins. She and my sister are still married, but I haven’t spoken to either of them in over three years. She has alienated my sister from her family."
7."I'm Asian, and less than two months after meeting my BIL, he went online, started dating an Asian woman, and brought her home to meet the parents. When she ran for the door, he dated another Asian woman….and then another. When he was asked why, he answered with comments that fetishized Asian women. He’s no longer allowed to come anywhere near me."
"My MIL's excuse was that for life to be fair, he has to have everything his older brother has and believed this is perfectly justified and argued that this has absolutely nothing to do with race."
8."My SIL (my husband's sister) had her wedding this year 12 hours away as a destination wedding. We weren't allowed to do anything because 'we could get COVID,' but the virus was very well around when she planned the wedding. I have severe food allergies, and she made fun of me for them. She made me bring my own dessert because she didn't feel like looking for a dessert for me. Bonus points for her buying my boyfriend a pie with nuts in it. I'll go into anaphylactic shock because of nuts."
9."My brother's wife tends to be VERY thoughtless. One Christmas when my son was only 6 months old, a relative jokingly asked when we were having another one. My SIL immediately blurted out in front of the whole family, 'Are we sure she's not pregnant again already? Look at that belly!' That was three years ago, and I still have body image issues and think about that all the time."
10."Just before my husband was deployed for the first time, we found out his dad had cancer. While the family was all together during Thanksgiving that year, my in-laws were talking to my husband on video chat, and my sister-in-law started WAILING while in the room with all of us. She decides to tell my daughter (who has abandonment issues from her birth family) that the reason she was crying is that she was 'worried that Grandpa is going to die before your daddy can come home and say goodbye to him.'"
"And though this is the worst thing, it's another in a long line of things she's done, like telling my VERY Catholic mother-in-law that my husband and I had sex before marriage because my MIL was talking about how much she liked me."
11."I referred to my sister’s fiancé as my brother while we were all out drinking together on vacation. He drunkenly told me I couldn’t call him that because I didn’t 'earn the right.' I played along with the joke. Weeks later he texted me out of the blue telling me that it wasn’t a joke and that I will never be his sister."
12."My grandmother was sick and in the hospital on her birthday, so I decided to take her flowers from me, my brother, and SIL. I told my SIL I was doing this, and she was all for it. She just told me to tell them how much they owed. So, after I bought them and took them to my grandmother (who was SO HAPPY to receive them BTW) I told my SIL how much their portion was. She told me she thought I was getting something else, not flowers. She informed me that she didn’t like flowers because they die and she didn’t think they were worth the money. So, even though she said yes when I asked if she wanted to contribute, and my grandmother was sick and in the hospital and DESERVED flowers, she never paid for their portion of the flowers."
13."My SIL called me on my birthday to call me a piece of shit because I cut her off six months prior for going off on a racist rant on my Facebook page. She literally waited until my birthday to try to ruin it. Last year, she also told my husband I was 'openly cheating on him with a woman from Instagram' and posting 'nude photos' of myself. First, I don’t know how you sneak out and cheat with anyone when you’re 1) both working from home together 24/7 and 2) there’s a goddamn pandemic. I called her and ripped her a new one, and she went into hysterics and said she had scheduled her wedding five months after ours 'to make her brother jealous' and that I ruined it by eloping."
14."My BIL NEVER calls us ever. I was 35 weeks pregnant (he knew my spouse and I were recovering from COVID, and I got it at 32 weeks); he called after his trip to Mexico to let us know that the family in Mexico told him to tell us that they did not like me and I was not welcome in their homes. WHO THE FUCK DOES THAT?! My feelings were so hurt, my blood pressure shot up, and I had to go to the emergency room."
15."My sister and BIL insisted my boyfriend and I wait to get engaged and married until after their wedding, which we agreed to despite them choosing a two-year engagement that turned to three and a half years due to COVID. They did allow us to get engaged once COVID started though. During their long engagement, I found out I was pregnant, which was a big deal for us because my boyfriend was told he would never be able to have kids, so we were definitely not planning it. When we announced it virtually to family, my sister and BIL didn't say anything and quickly left the call."
"During their wedding, I made sure that all attention was on my sister and her big day and not me being pregnant. Still, at 9 months old, my sister and BIL don't ask about the baby. It burns me because they got the big engagement, an engagement party, the big beautiful wedding, and I didn't even get the joy of a virtual baby announcement."
16."My SIL (my brother’s wife) is worth a mention. My brother and I are the only family we have. We have never been very close. When they got engaged, they didn’t have an engagement party for about six months. She decided to have it after I moved out of the state. When they got married, they texted me a month prior that she decided to elope (she had been planning a wedding) and if I could make it. She invited a bunch of her family. I had also gone through a really rough breakup with an abusive ex, and she told HER FAMILY that I had cheated on him and that’s why we broke up."
"One year when I didn’t have any money because I had moved and started over, I was saving to buy them nice gifts, but I didn’t have enough for myself to pay for my bills around Christmas. So she complained to her family and my brother about how trashy I was for not sending them anything. He takes her side every time. I just don’t bother interacting with them anymore."
17."I was very close to one of my brothers, so I ended up being closer with his wife. There were things I didn’t care for but brushed off as normal. When I became ill, I confided in them and expressly told them I did not want anyone else in the family to know because they’re very judgmental. Several months later, I found out she had told my mother, who had told all my other siblings."
"When I called her and was like, 'WTF?' she replied that she felt they had a right to know. And yes, my family has been judging me ever since. I don’t speak to her any longer, I'm not even cordial at family functions, and she ruined my relationship with my brother and nephews."
18.And lastly, "Due to a massive storm, it turned out that my ex and I couldn't make the four-hour drive to the baby shower his family was throwing for us. They all were OK with waiting until the next day because everyone lived in that small town, but they decided to have it anyway, without me. My ex-sister-in-law decided to eat all the cake and open all the gifts."
Note: Submissions have been edited for length and/or clarity.
