In short (I have posted before), I had an affair with a very close friend. Worst mistake of my life. From him I got the emotional understanding I'd never had with DH, and I didn't realise until I found it how important it was to me. DH's good points had kind of cancelled it out so I just lived with it.
I eventually said I would leave DH, after much soul searching, trying to break it off a few times and OM begging me not to. At that point he turned around and said he couldn't be with me because he realised he couldn't have any more kids (I don't have any and do want them) as it would take attention away from the ones he's got. Two weeks later he announced his new relationship to the world. He'd known her a month. I found out last week not only that she has kids but they are already calling him daddy.
The affair has changed me. I think it has changed what I want. DH desperately wants to work things out. I am reeling from the hurt I have caused him and the hurt OM has caused me. I am gutted he has moved on and feel I have made a huge mistake not deciding sooner to be with him. (obviously the mistake was getting close to him in the first place - I know that.) DH wants to know what's in my head even if it's about OM. I feel awful that I can't love him like I used to. I miss OM unbearably - he was, prior to all this, my best friend so I've lost that too. Something in me can't accept that after everything he said to me he doesn't want me any more.
I don't know what to do. I don't know whether to hang on and hope my love for DH comes back, or cut and run so that we both have a chance at happiness again. He would be devastated but I don't want to stay in something my heart's not in. I don't know if it's partly because I'm depressed. I just can't stop thinking about OM and be so angry that he got me to that point and then dumped me. I know it was my decision, I know I was stupid, I know I went about it in completely the wrong way, but my god, it has come back to haunt me.