20 years into my relationship I had a brief affair a while ago. We didn't make it to sex but had long phone calls, texts and a couple of short meetings before I broke it off. I am heart broken and miss him so much. I think about him all the time. Of course it's affecting my marriage as I'm miserable and I can't explain why to my DH! I feel like I'm in secret mourning. We have 2 DC's and a good relationship that I don't want to end. Anyone else been there - leave or stay? How on earth do I make a decision?