My friend is 14 talking to a 19 year old...

I have a friend who trusts anyone and lets anyone into her life. Well this 19 year old I’ve known since kindergarten is trying to date her. This is also the guy that let a 13 year old bounce on his lap, wants to drop out of high school, wants to have a baby before he graduates (if he does), and he’s the definition of a fuckboy. “He makes me happy” hun I have never seen you happy while talking to him. All he does is make her a mad or upset she almost cries and he throws a tantrum if she even posts another guy on her Snapchat story. Like full on getting an attitude, silent treatment, sending her sad songs, cussing at her and calling her names, and even threatening to kill himself. We’re all telling her not to do it and to stay away and she won’t listen and it’s so frustrating.