“He stopped wearing his ring and has started talking about the split with friends,” a source tells PEOPLE.
Camp and Astin were last spotted together attending the Mickey’s 90th Spectacular in October and have since unfollowed each other on social media.
Astin, 31, last posted a photo with Camp in January, showing them cuddled up as they celebrated the New Year.
Camp, 36, posted a series of photos dancing with Astin just a few weeks later.
Reps for Camp and Astin did not respond to PEOPLE’s request for comment.
The Pitch Perfect costars, who began dating in June 2013, tied the knot an outdoor ceremony on the central California coast in October 2016.
“This has been the fastest year of my life,” Camp told PEOPLE ahead of the couple’s one-year wedding anniversary. “We fall in love with each other more and more every day we’ve been together. And I know it sounds, like, gross, everyone’s probably gonna throw up about that, but it’s actually really true.”
“Knowing that I have my best friend and that we are totally committed to one another and just to have that comfort and that safety and that bond where you know you’ve found your person, ” she added. “The longer you stay with somebody, the closer you get, and it’s really the best thing in the world to have another person that loves you just as much as you love them.”