Advice ???

I’m so upset and feeling depressed and worthless. I found out that my boyfriend of more than 4 years has talked to and sextes with girls.

We went thru a rough time and he broke up with me for a about a week and then told me that he wanted to get back together. Since we’ve been back to together he’s been super sweet with me and acting like he did when we first started dating. But I found out that before we broke up and during, he was on dating apps and I found out that he was on Snapchat and paid those girls on there that send nudes.

I know a lot of you are going to say “well you were technically broken up at the time”. But we were together for a very long time.

I honestly trusted him until now. Like I feel so insecure and like I have to worry about what he’s doing.

I can’t believe that. It just makes me feel like he’s a pervert. I’m so upset.

I wish I could just break up but it’s hard when we’ve been through so much and we had such a good relationship. And now I feel like broke our trust

What would you do in this situation?

Edit: I just want to say that we are in our 20s and we were planning on living together. We have/had a pretty serious long relationship.