I've not used mumsnet in long time but I can't bring myself to talk to anyone about this. My DH works away most of the time and our relationship hasn't been great, we're not really talking properly when we are together. I just feel so alone all the time, I spend all my time with our young DC who I love dearly but I've missed adult conversation. So the other night I finally got the to go out and see some friends I haven't seen in a long time. I had a great time and as everyone started to leave a friend suggested coming back to his for a bit. Nothing out of the ordinary, we've been friends for years, I hadn't seen him in a long time and he only lived round the corner. It started off as just a catch up and a few more drinks, I told him about how I was struggling with my DC and with DH being away. We ended up kissing then having sex, before we DTD we agreed it would only be a one time thing. I regret it now more than anything. I don't even know what I was thinking, I think it was a mixture of everything that's going on and just being a bit too drunk. I'm going to have to tell DH aren't I? I'm scared this is going to be the end of our marriage