My boyfriend, who is 24, frequently looks at pictures of slim women, and I'm not sure how to feel about it.

I’m a 21-year-old woman and have been in a relationship with my boyfriend, who’s 24, for a little over six months. Initially, everything felt great; I was genuinely happy and thrilled to be with someone so kind and affectionate. However, as time went on, I started to experience some uncomfortable thoughts and fears. I’ve struggled with low self-esteem for a long time, and to ease my worries, I made the decision to check my boyfriend’s phone. I just wanted to see if there was anything suspicious going on. While I found no evidence of cheating, I did discover that he spends a lot of time looking at pictures of very skinny women – and honestly, they looked more unwell than just slender. I’ve always been on the thinner side, but over the past year, I’ve gained some weight due to my mental health challenges. This change has already made me feel unattractive and unworthy of love, and then I found this out… He tells me I have a great body and that I’m perfect as I am, but it’s hard to reconcile that with his interest in much slimmer women online. I’ve tried to push these feelings aside and enjoy our time together, but it hasn’t worked. I find myself checking his phone again periodically, and each time, I see things that upset me: searches for female celebrities with eating disorders, skinny women populating his Instagram feed, and YouTube shorts featuring extremely thin women. Each glimpse hurts and angers me. My boyfriend picks up on my mood and asks what's wrong, and I often deflect with excuses about being tired or dealing with negative thoughts. I’m unsure about how to approach this. I want to bring it up, but he’s previously mentioned that he values privacy in a relationship, like not going through each other’s phones. I can’t even imagine how he’d react if he found out I had done this. I truly don’t want to end the relationship; he’s a great guy, and both our families support us. We have plans for the future, and I’d hate for anything to jeopardize that. I’ve heard some people say that a partner looking at pictures of other women doesn’t mean they don’t care for you or that they’re unhappy in the relationship. Should I risk a potential breakup by addressing this, or should I just keep my thoughts to myself, considering it might not reflect his feelings toward me?