First of all, I'm after advice, so please don't slam me down, call me all the names under the sun etc etc.
I've been with the most amazing man for the last 18 years and I love him and our 4 year old son more than anything on this planet.
My husband is my best friend, my soul mate. He loves me to death as I do him, we have an amazing sex life, we have money and are comfortable. Our son is just wonderful.
The year before I got pregnant with my son, he cheated on me. We were on a night out, a friend came back and we were extremely drunk. I went to bed, came down half hour later when he hadn't come up, and I caught him giving her oral.
I never really got over it, but I could never live without him and he was devastated by what he did. I totally believe that he's never done it before and would never do it again, it was just one of those things that he's paid for.
He has a brother who is as lovely as him, he's his best friend. Problem is, over the last 6 months or so I've developed feelings for him.
Every time I see him, I don't know what to do with myself.
I don't know why, as he's also obviously been in my life as long as my hubby and I've never felt it before, he actually drives me crazy sometimes with things he says and does, but I've started to fantasise about him while having sex with my husband and I feel ridiculously guilty about it, but I can't help it.
He comes over a lot (his wife doesn't give a shit about the family and makes no effort with any of us, even him).
I'm just not sure where it's all come from, or what to do.
My husband and I have been trying for another baby for 18 months and had 8 losses in that time, so I'm not sure if that's triggered something.
I've got to a point that's if my brother in law prompted something, I'd take it, but I wouldn't start it.
I'm just sickened with myself, and don't know what to do from here.