I wanted a relashionship with this guy, it did not start well, we have broken up several times and gotten together again. I was good to him. His ex in the past was really abuse to him and even stabed him in his eye with a knife while pregnant with his child. This is absurd! All signals tell me he's still in love with her (what kind of love is this?) and would continue a relashionship with her if I was not there, there was a lot more abuse from her, towards him, and their children. Why does he continue to think about her? After all she has done to him? To complete, she is with another man and is pregnant at this time. He says that that does not matter, if I was not around, he'd be with her, I don't feel enough love from him I am kind of a consolation kind of thing to him because he is not with "her" a "cover up" for his feelings. I am so disappointed because I gave him all my love, time, attention and energy but he is not returning it the way I wish. So, I just left him. Why? Of his behavior?

At least You Left, Good Move There, Who Knows In His Mind This Girl May Have Done Something For Him That He Has Held To Be So Great,
(maybe Not To Us) But To Him It Could have Meant The World, And He Just Can't See What Is So Obvious To Everyone Else.
And I Guess We've All Been Like This At Some Point, Maybe Not To That Extreme, But We've All Been In Love With Some One And Refused To See There Flaws. He May Be Just So In Love With Her It Doesn't Matter, She Can Say Or Do One Thing For Him And All The Bad Stuff Doesn't Matter Any More.
My Advice You've Already Done, Move On

Don't worry about "why". He has issues that you will never be able to understand or do anything about. You made the right decision so just go on living your own life and find yourself healthy men to date.

I just left him today, and he usually does not take long to return, when he does, he tries to win me back. I am afraid of getting emotionally with him like I am or was. I have an illusion with him even though I don't think it can really happen. I don't believe I am strong enough sometimes to say good bye when he returns unless there were someone else but there is not.