I find this thread and the responses so disturbing... I have tried to answer a few times but not really sure what I want to say.
I feel so sorry for the OP, she is trying to be honest and get some advise but without knowing the full story and why she is where she is it is far too easy to say 'Walk Away' 'Find someone else' 'Its all your fault'
I don't care if you flame me because I am in a better place now - BUT I came out of a long long abusive marriage without any self-esteem or confidence whatsoever, I could not see that I was of any use to anybody or that I deserved a relationship with anyone.
I used to work away from home a lot in a small team where I became involved with someone, he was married, told me he loved me, that he wished he had met me earlier, that he would leave etc etc. We went away together for work probably every three weeks or so for 2 or 3 nights.
I always believed that he told me the truth and I loved him. I loved him for far too long, he was my best friend and it ended when the job ended and we could not see each other anymore.
Looking back, it went on for far too long but I look back fondly because he came along at a time when I needed someone to build my confidence, to believe in myself and he did that for me. He helped me to stand on my own two feet and I thank him for that.
Three years later, I still miss him as a friend. I still wonder what he is doing in his life and hope that he is happy.
Sometimes people come into our life for a reason and if the OP gets something from this relationship then all well and good - even if it is that she will never put herself in the same position again. I never will.