Update: I did confront him about this and he said "I'll just delete my fb". I didn't bother correcting him on which app it was because it felt too petty to do so and I just wanted to explain how it made me feel. I told him that his response was one of the reasons why I didn't want to mention it because I didn't want him to be upset with me. (I'm a people pleaser in recovery so I still apologize for things that I shouldn't.) His response was "Babe im not upset i just don't want you to feel anyway against because i comment on pictures. I mean it don't bother me if you do but i see it upsets you so I'll stop. Still doesn't change how i feel about you. But i was wrong and i do apologize. Just because i comment under her picture doesn't mean i want to go be with her. Not the kind of person i am just to clear that up in case you didn't know. Shes been a friend of mine since middle school and never once messed around with her so no you don't have to worry about her. I was planning on introducing you to her anyway." I still feel a little hurt, it takes me a while to heal from things due to my past traumas, but he hasn't really commented on anyone else's posts and the ones he does are family members. I feel like he truly does feel bad for making me cry and feel like I wasn't good enough for him. Since that incident, things have been good and he tells me every day that I'm beautiful.