My son is turning into his father

I’m really worried about my 21-year-old son. His father and I split up when he was young, but they’ve stayed close. My ex is a womaniser who had constant affairs when we were together, and he continues to treat women terribly. I’m concerned that his attitude is rubbing off on my son. He seems to have a worrying disregard for the opposite sex, and it would break my heart for him to turn out like his dad and hurt women the way I was hurt. Alannah, Bristol Outside influences like your ex-husband can have