<human>: My boyfriend and I are in our early 20's. We've been dating for 2 months now.  A month ago I found out he had been sexting and being generally flirtatious with a girl he had just met. At that point I did not break up with him. 

A few days ago I found out he had lied to me again. At that point I immediately broke up with him without giving it too much thought.  Anyway, I got back together with him shortly after (my decision completely) 

I want it to work out, Reddit, I really do. But I still can't shake the bad feelings of betrayal. Its really done a number on my self esteem.  I'm very paranoid that anytime a girl flirts with him he will just do the same thing again. Girls will be inevitably flirting with him again because it happens often even when I'm there. When we go out to eat, waitresses openly flirt with him infront of me and then practically ignore me.  Obviously he handles it well and doesn't reciprocate, I cant just help but be really bothered by it. And cant even imagine what its like when im NOT around. Basically im paranoid about his behaviour with other women. 

Since getting back together, things have been normal. We have a good time together. But we haven't figured out how to fix the situation. Hes been really good about it because hes been saying he'll do whatever I ask of him. The problem is, I don't KNOW what he can do to earn my trust back, because obviously everything he says I have a hard time believing it. What do Reddit? What can we do to fix this?

Can you give me a shortened version of the text?
<bot>: My boyfriend cheated on me (via sexting) and lied to me about other things.  Now I'm super paranoid about everything but I want to make it work. How do I begin trusting him again?