Is AUTHOR wrong in the post ? POST : Obligatory mobile and non native english speaker disclaimer.

I [18, F] used to be friends with this guy [19, M]  from a city cca 5 hours away from mine for about 6 years. Most of that time our friendship was fine, up until he left for Thailand for a few months three years ago.

When he came back he was really depressed but refused to seek medical or therapeutical help, everytime I told him to, since I suffered from depression as well and being on meds helped me.
His depression made him avoid his old friends, so over time he ended up with only me, which I guess is why he fell in love with me. 

From the beginning I was refusing, since I wasn't interested in him romantically yet he would push on and on, to the point of me being scared of him. Telling me how much I meant to him, that I'm the only one he has and so on. 

Lately he started to send me lowkey threatening messages, like "you can't hide from me" and so I ended the friendship and told him he needs help. Since then (about a month ago) his parents and sisters call me about once every three days to tell me I should unblock him and give him a chance, that blocking him was awful of me since I'm his only friend. Even my mother asked me to reconsider. 

So, AITA? 