NC due to my situation being quite outing.
Split with DH several months ago. We have three DCs. The marriage had bouts of emotional and physical abuse- name calling etc. I felt very much like I was walking on eggshells. However, I led a very comfortable lifestyle. No surviving family meant that for years I just put up because I felt I had no other choice.
I feel out of love. I never did anything to keep him home because it was so much less tense without him there. He would go out to visit friends 4-5 nights out of 7. It came to a head for me last year when I found out that a woman that we both knew, who I might add, had not been in touch with me for several years came to visit him with her mother after recently getting divorced herself whilst I was away with our children. I found out that because he felt sorry for her, he arranged a meal out with him, her and 6 other of his male friends as a moral boost 
I flipped my lid when I found out because he was giving her the attention that I felt I had missed out on. He swore that it never went any further than this meal, and cut all ties when he subsequently found out that she had slept with two of his friends. I stupidly never confronted her once I returned from holiday, instead telling him that this was the icing on the cake, and I wanted out.
Fast forward several months. I started to have feelings, or at least I thought I did for an old school friend, and the ex found my messages after Id stupidly forgotten to log out of FB on my daughters iPad. I had messaged a friend saying that I had declared my love for this guy and didn't know what to do. I need to add I was steaming drunk, and that nothing of any sort has happened between me and that person- he has said nothing could happen because both of our circumstances are too messy (he is going through a messy divorce etc). I guess I was looking for validation that I was still attractive, and I went the wrong way about it, and felt very ashamed for being so naive.
Over the past few weeks, the ex and I have talked, probably more than we ever did in the relationship. He realised that he was wrong to do what he did to me, and that he wanted us to get help. I admitted that I maybe didn't try as hard as I should, but I felt constantly belittled by him and consequently fell out of love.
Unfortunately we had another row at the weekend. We had stopped contact until he called this morning saying that we really need to sort out the remainder of the finances etc as we were only dragging things out. He then said that things cant go on like this forever as he has a new girlfriend. Several minutes later when I asked him again, he said he meant that one day he would have a new girlfriend, and that I was to expect for that to happen.
So to cut a long story short, I'm really not sure where I stand. Was it a slip of the tongue, considering only last week we had spent several hours together trying to talk through our problems? I want to trust him but feel like so much has been hidden from me in the past that I don't know if I ever can. Can I ever get over the way he made me feel mentally in order to give the marriage another go? We met when I was just 19. He is all I have ever known. He has been there at the lowest points in my life. He never let me want for anything, I just think he didn't know how to love. I can forgive, but how hard is it to forget?