My friend has a16yo dd. The dd's new boyfriend is an 18yo from my ds's circle of friends. I've known him for several years and he's a lovely young man, good-natured, polite, considerate, funny.
But I have a concern about him and I don't know whether I should tell my friend, or keep out of it.
When it comes to alcohol, this young man has no control. He gets totally, uncontrollably drunk. His friends need to look after him to keep him safe, as he behaves badly and often passes out. He has smashed up things at a party when he got drunk. He comes on to any and every girl when he is drunk and chases her pathetically. (Usually resulting in the breakup of any relationship he is in at that point.)
He has never assaulted anybody while drunk, or while sober, either.
Should I tell my friend?