kaycee,
My husband and I went thru a similar thing about 6 years ago. He was attracted to another woman and one thing lead to another.... he denies anything physical but the damamge was done. I had a really rough time getting over it but I had to find away for the sake of my son. He simply adores his dad. (His stepdad actually)

It has been really hard to deal with the frustration and pain of the betrayal. His heart and his intimacy was supposed to be mine forever. The fact that he could be so cavalier about what he was robbing me of was the final straw. I left him for a while. I made it very clear that I didn't want a divorce. I also told him that if something came up during our separation that I couldn't trust, then it WAS over. I let him know that I had to be able to get in touch with him at a moments notice. That I had to know where he was at all times. That my trust had to be number one for him or it wasn't going to work. He understood that my feeling betrayed was what had to be healed. He was very respectful about it. He understood that he had to see thru my eyes. How would he react to this kind of betrayal if the shoe was on the other foot? I got lucky...he was commited to making our marriage work and one simple act of looking lustfully at another woman almost destroyed what he had taken years to build with me. He valued our life that we built. He loved our son and was willing to work real hard to find a way to earn my trust back. I got lucky....but my advice is to be real honest and straight forward about what you feel and what you need. Say what you mean and mean what you say. Be willing to do what you have to do but don't roll over. Respect yourself and be respectful towards him. We show people how we want to be treated.

Just my humble opinion...