My LDR Boyfriend Broke Up With Me.

A lot had happened this month. My mom and i had a huge fight which made me move out. And that time i felt so lonely and suicidal at the same time cause i was living alone and i have no one to talk to all day except my boyfriend we're in a long distance relationship and we never seen each other. We dated for 8 months. He's the only person that motivates me to face tomorrow and not give up. But after i moved out i kinda change a bit. I always demand for his attention and i didn't know how to express it well. I became moody and suddenly get mad at him for dumb reasons and i dont let him know, and it upset him. Until we had an argument which lead him to breaking up with me. We broke up last Saturday. We planned a lot. We already planned our future and our wedding and suddenly it's all gone. I know that he loves me a lot that's why I still couldn't believe what happened. He broke his promises. I tried calling him the next day after the break up but it didn't went well. We just ended up blocking each other on insta. 4 days later, I texted him cause I wanted a closure and cause I wanted to fix what happened between us cause i don't want us to hold any grudges towards each other, I wanted us to end in good terms, but he just ignored my text. And i still don't understand, we just broke up last week yet he's already following some few girls on insta. It hurts so bad.