Do you consider 19 year olds grown ups or are they still young?

I have been asked by a model to comment on her pictures she denied she did ask and called me a stalker. This happened in her childhood too she did it to me before and I forgot not to trust her. Her mother is weird! she said something that had upset my family when I was  a kid and she told my family I was the one lying.  My ex who was very attractive is a very jealous brat. He likes to get the world to think that those who dislike him are jealous of him because he doesn't like to feel disliked ( I was told that by my grandmother, also the model is the same!) I was told to watch my back over them, but it's been forgotten and I had been interacting with them. But now I'm not.  

I was in front of her office jumping around, pacing back and forth while she was talking with someone else. She was not nice, she was very unapologetic about it, and she didn't even say sorry. This took place almost six, seven years ago. But I want to put a foot up her old, dried up @$$ for that.