I dated a girl for three years and two months after we broke up, she was pregnant with another guys kid who was only separated from his wife for two months. She wanted me to marry her, but there was something missing in our relationship and I was too emotionally involved to realize that she had poor character. She is highly manipulative and I never stood up to her bulls**t.
Funny thing is that she ended up with a guy who is highly manipulative too. I hate people who are almost sociopathic in their lies and manipulation. You think, wow this person is really nice, but then you realize that they are full of bs. I was way too naive about my ex.