I apologize if this doesn’t belong on this subreddit, but I feel as if I need some answers. I’ll try to make this short. 

I dated a man (23) for a few months. The only mental illness I know he has is depression, but I also sense he has some sort of mood disorder, which causes him to become angry and lash out. 

We had been dating for a few months when I decided to break up with him. It wasn’t easy. I was afraid he was going to seriously harm himself if I broke up with him, but I broke up with him anyways because my mental health was deteriorating in the relationship. 

He was quite toxic. He wanted to know where I was 24/7, he’d send me messages every hour if I didn’t respond to him, he needed my constant reassurance, etc. 

After we broke up, he began to do creepy things. He went onto my Tellonym anonymously and asked me
if there was “someone else all along” and he even asked “have you ever considered getting back with any of your exes”. When I said no, he said “Really regret asking you a question now, but oh well.” I realized it was him, and I was angry. He was being creepy and it seemed like he was obsessed with me. 

It only got worse when (on his birthday) he messaged me, asking if there was anyone else during our relationship, then asking if there was anyone after (which is none of his business). Basically the conversation ended up with him thanking me for ruining his birthday, calling me names, and continuing to use his multiple Instagram accounts to harass me. He even told me he was going to seriously harm himself (kill himself), and he even said he was “getting tired”. Two days later, he messaged me. He basically faked a suicide. 

It’s still happening. 

He’s still calling me names, telling me to kill myself, making fun of me for something that happened to me when I was 17, etc. 

Is his behaviour due to mental illness? I’ve told one of my parents about it, and they said that it’s probably because he has mental health issues.