Depression after a break up

Hello everyone! I wanted to share with all of you something really personal. Last year I met a guy, I really liked him and he treated like a princess every time we were together. I started falling in love and I decided to lose my virginity ( I was 18), he's 7 years older than me. So, 4 months passed and I was hoping he was gonna tell me to have something serious, but it never happened and he  started ignoring me. I was feeling really bad, so I decided to have a talk, he told he didn't want anything serious and he didn't wanna get emotionally involved, and that honestly destroyed me so much.. He told me to be friends but I just couldn't do it, I tried but he ended up kissing me and then saying I'm sorry I kissed you, I just couldn't handle this anymore. I had to move on when I was in love cause he was hurting my feelings. This happened 4 months ago and I changed, I used to go to the gym every day, and now I don't even wanna leave my house, I had straight As and I started falling in College, I used to cry every single day. I just felt so empty.. I went to the psychologist and psyquiatric and they told me I had depression. It's still affecting my life after 4 months and he's inmy dreams every night.