<human>: Could you distill the essence of the text into 1-3 sentences?

I still see my [28M] ex frequently (unavoidable situation that will be remedied soon).  We slept together and it was a dumb moment that I regret.  I definitely don't want it to happen again.  

My current boyfriend and I have always been long distance and we have some issues because of it.  Sometimes I don't feel very connected to him.  He definitely doesn't deserve this, and some of my friends are telling me not to say anything.  I'm not good at keeping secrets and I really really want to tell him but now I'm scared it will hurt his feelings for no reason.  I know he is always worried that my ex and I will end up sleeping together so I feel extra horrible about it. I feel like such an asshole.
<bot>: I am a jerk and cheated on my boyfriend who I am in a LDR with.  Is it worth it to say anything?