Would you move on with a divorce in my situation?

Here's the deal. My wife cheated on me with a co-worker about 2 1/2 years ago working one of those seasonal jobs. I knew something was up during the month she was working there. Those that have been cheated on know all those warning signs. About a year later I had all those warning signs again when she worked the same seasonal job. She swears she didn't cheat. She may not have physically, but I think there may have been an emotional affair of sorts. Well, the feelings that I once had for my wife (before the first affair) just aren't there anymore and I've tried for 2 1/2 years to get them back. I love my wife but I mean that in the sense that I care about her. The feelings are adoration and respect that I had for years are gone. Instead I feel indifferent and apathetic toward her and our marriage. I really can't say more because I only have 136 characters left to work with.