[too perfect]

I am 22years old I am married and have two beautiful girls, I am happy, however, I have suddenly got this crush, or whatever I should call it, on my husbands best mate.

I have always liked him, as we have always gotten along, he is very nice.

I dont know what it is about him that I like all of a sudden, I think it maybe the fact that, my husband and I have not been getting along to well, and his mate pays me alot of attention, he is always looking at my boobs, and telling me how great I look, I use to get so pissed off when he did this but I dont all of a sudden, and I cant stop thinking of him now. how do I stop? Whats going on with me?Help

Iknow his frind would sleep with me if I made the first move, however that is something Im never going to do. what should I do, any advice or people in this situation?