My girlfriend who is in her late 30's now and when she was 14-15 area babysat 2 boys and their father used to take her into the basement when his wife was at work and teach her to make alcoholic drinks etc.. and also used to take her once in a while to bars outside their neiborhood where nobody knew them and she has told me that there was no improper touching/ sex etc.. Does this only sound weird to me that a cute little skinny blond with larger than normal boobs who was only 14 area who swears nothing ever went on with this married man behind his wifes back and my girlfriends fathers back, that there was nothing going on and years later she has had alcohol problems ,she went through a period of literally getting totally ripped drunk and waking up with her mistakes, relationship problems and basically idolizes the guy who she said did nothing with her.
Someone please help me to understand whether I'm just overreacting to this or whether it is actually the truth that I've been told because she still comes home after work and has to have 2 beer minimum. Please help.

Thank You