whattttt doooo I dooooo

i have a partner and we’ve been dating two months
Honestly at first I thought he was lovebombing could be and I still didn’t see but basically our first problems were him liking videos on insta and they were like weird things like oh all my friends that are girls were my past situationships and another was like when I’m playing girls but the only one I want is my pretty girl and so I found this blocked him and then his friend messaged me and I’m like crap so I hear him out and he’s very apologetic being like oh I liked those before we were talking and before you I wasn’t talking to anyone and so I forgave him
Now OUR PROBLEM or basically my problem
Is that there’s girls he follows but I follow a lot of ppl too soo it didn’t really matter but there’s this one girl that he has ON EVERYTHING now idk if it’s a cousin family or whatever but she’s on his insta and TikTok and my breaking point was when he had her on his Airbuds and she put a heart ON ONE SONG mind you he only had me added NO ONE ELSE then I see her cats story and one of them looks like his cat and now I just wanna block him and never talk to him again and writing this out I feel so STUPID Agh but yeah pls help a girl out