What do you do to stop feeling guilty?

Why don't you aplologise and try to rectify your mistake.If your friend accepts your apology,please ask him what you can do to set right the situation?When you have knowingly committed a mistake its best you try to set right the wrong by taking some action to assuage the hurt feeling.I have felt guilty but i did try and set right the error of my way.

Well if you are really feeling guilty and are not able to forget it then I think the only way is confess it to your friend. How bad is it that you are feeling so guilty? I don't like feeling guilty and I always avoid cheating and lying to my family and friends because I know it is not a happy life that I'm trying to approach and achieve. If you cannot confess it then you either have to just forget it and be comfortable with what you have done.

I don't like to feel guilty about anything. it changes how I feel about myself. if i have this feeling of guilt, it would eat away at me. i would have to find something positive that would help this feeling fade.

It depends. If you shagged her then don't feel guilty about it. It's normal.

Many things resurface that at times make me guilty and to escape from them I make a yawn and convince myself that I did not actually wanted what happened. Its part of being a human to commit mistakes. I then shift my concentration to a pile of unfinished business to keep myself unemotional about the past.