Guys, why go back?

So I’m just trying to get the male view cause as a female I am confused as to why someone would go back. I had this f-buddy, known him for about 5 years. We used to be f-buddies in the past. Anywho we resume things last year. He told be he was a year single and that his previous girlfriend had done him dirty. He spilled the beans turns out she faked a whole pregnancy. She kept telling him she was preggos and that he had a baby but would not give any proof during pregnancy like face time during ultrasound visit, proof like hospital docs, pictures of said baby. Per him, his family got involved and discovered there was no baby. When his friends and family would question her she would block them on everything. Per him, his family dislikes like and his girls cousin wanted to beat her up. He said he would never go back to her, turns out a week ago he went back to her. So I’m just confused as to why a man would go back given everything that were down. For reference I am 30, he is 38, and the ex is 28.

Guys, why go back?
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