While speaking with Mr. Porter for a recent interview, the "Cake by the Ocean" singer, 33, revealed why he doesn't share the more private aspects of his relationship with Turner, 26, with the public.
"I want to feel like an open book," he told the publication. "But when we started dating, I realized that I didn't have a ton of stuff that was just for me. And in the end, it makes me a better person to have something for myself."
"There have been a lot of situations in my career where, like [Styles], a small thing has been blown out of proportion," Jonas said. "It's had this trickling effect, which is partially why I decided to take a mental health break from social media. Now I'm addicted to not knowing what's going on."
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Following their second child's birth, Jonas shared some happy moments with his wife in a loving tribute video posted on social media that showed photos from their wedding, as well as more intimate moments, like them snuggling in bed.
"Started from the bottom now we're here…" he captioned the video on Instagram.
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Jonas told PEOPLE in August that he is still trying to balance out making new music and acting, as well as being a father to a newborn baby.
"It's an adjustment period," Jonas said at the time. "I wake up every day just thrilled to be able to go make music or act and create different projects and have a beautiful family, so it feels like a dream come true."