How do I improve the relationship with my boyfriend?

the only thing i can tell you is to sit down and have a long good talk about everything. it seems like the only way you guys can solve these problems is if you explain to each other what you've been feeling. tell him you really want to make things better and you want to keep this going. and just tell him that as much as you try to get past the cheating incident theres always a part of you that is having trust problems.. just talk it out communication is the key to solve problems within relationships. good luck with this and i hope everything works out between you two!