Hey bud, I understand how you're feeling. Many here have gone through this and it's very tough. However, keep in mind that most of these types of affairs are temporary. Think about it, such relationships are built on the wrong foundation.
As for whether or not you should move on, well what does moving on really mean? You can't flip a switch and say ok I'll feel better now. You'll still feel the pain and hurt but it won't kill you, I guarantee that and what doesn't kill you only makes you stronger. So yes by all means move on, figure out what that means. Does that mean hanging out with your friends and family more, taking up hobbies, working extra hard at work...if so yes move on, it'll be the best thing you'll do for yourself. However, if moving on to you means getting laid or having an affair I'd say no...not yet. Give it some time, you're too close to the forest to see the trees. When you take some steps back and have a better view then make a well thought out decision and write down the reasons you made the decision.
I'm well over a year into this and I'm just starting to find my reasons for moving on. I'm not saying you have to wait this long or longer just saying that I've been where you are and if I'd made the decision back then I wouldn't have seen the full picture.
Me: 32|W: 34|D: 3yo 1st bomb: Feb 2006 (left one day, came back a week later) 2nd bomb: Aug 2006 (moved out, ILYBNILWY) 3rd bomb: Apr 2007 (filed for divorce) 4th bomb: <her finger on the launch button>