I don’t want to break up with my bf

Marissa

My bf and I have been having a really really rough week, we have been arguing every day non stop. Because a while ago he lied about talking to other people and hiding stuff. And two days ago I asked to see his phone and he said he was never going to show it to me. We’ve been having these arguments so much. I’m insecure and he’s talking to all these girls and hiding it. I really want to stay with him. He gets super mad super jealous if he even sees me smile at a guy like for example the guy at the gym that greets us. I want to stay with him but I don’t see him worried or trying to change. He says its hard to try when I’m constantly telling him he’s hiding stuff. It’s just gotten super messy and complicated but I don’t want to break up. We can’t afford counseling . I’m 20 and he’s 19. What do we do 😭 how do we build trust? How do we make it stronger?