I am having a hard time feeling sorry for someone that just shot his load off into some girls mouth. But that is just me.

If you were really concerned with working things out with your girlfriend you would not have put yourself in that situation. If this girl that you fooled around with knows your girlfriend, you are fucked. If not just end it now.

Do not put yourself in this situation again.

But hell ya got sucked off and blew your load. Sounds like your life is pretty good to me.