I don't even know who I am anymore 
After a drunken night out at the weekend I ended up going home and spending the night with a friend of my very recent ex partner. He thinks it would be better not to tell my ex know what happened, but I am terrified he will somehow find out and how he will react if he does.
Although we are both single, I can't help but feel really shitty for what I have done. If it was roles reversed I know what people would be thinking and saying about a guy who had behaved as I did.
Should I try and convince the friend to tell my ex what happened? Just think it would be better coming from him as opposed to him maybe hearing it elsewhere.