<human>: Can you condense the text into three sentences or less?

I don't want to go into it, but he hurt me a while back. We've been dating for nearly a year and the "incident" happened 3 months ago. 

I'm not sure if he cheated and I can't 100% prove it. We've made our truce and decided to give this relationship a serious run after so many hiccups. Rather than talk about it like a rational adult I vented to my friends about some of his behavior and basically I've been acting indifferent when I'm still wounded. It's been almost 2 months, but I'm at the point where I'm just tired of being angry with him and I'm tired of these passive aggressive games.

I figure, he's flirting with another girl, then I can flirt with another guy. Whatever. If he can do this, I can do it too. I've been in a silent competition with him. I realize it's petty and childish, but I don't even know how to begin to even try to speak to him about it all. 

We're just going to wind up fighting more. He's already proven he doesn't care and in a way I just don't see the point of it. 

I feel guilty now for acting like a brat instead of dealing with it like an adult. 

It's been a couple of months since the incident and things have gotten better. Is it still fair for me to bring it up and if so, how?
<bot>: BF did a shitty thing and I've been dealing with it passive-aggressively rather than talking about things and handling it like an adult. Now I feel guilty for acting like a douche instead of an adult.