Cheating and still stayed

So I was cheated on by my bf I love him and i remained to stay but I really have trust issues with him I don’t trust him and his moves at times. He keeps his texting notifications off which makes me feel like he’s still cheating he doesn’t give me enough assurance that he’s not still out there doing him I want to be with him but how do I over come this we argue more than ever. And just recently I had to leave nc to relocate back to jersey for child custody issue with my kids father so now I’m really in edge. Cuz he’s free to do whatever. And I don’t like it. What do I do who has been through this how did you over come everything to be one and strong again?