How do i forget about him?!?!

I was with him for 3 years. He dumped me 2 days ago because im too “controlling, possessive, insecure” i wont deny it but the only reason why i felt that way was bc he never put effort into our relationship. I was always the one planning dates, picking him up, paying for our movie tickets. We never went anywhere, just movies and food. I wanted to go to six flags, i wanted to go on trips, i wanted to be adventurous with him. He however, never was interested in that. I settled because i loved him. But then ill turn around and he would go out to bars, go out with friends, go out to play pool (something i love to do) it was just never with me. I became controlling because if he couldn’t do things with me, why can he do it with others?!??? When he dumped me, he said. “i feel like i have to sneak my way around in order to not upset you.” I truly understood that part bc of how bitchy i get when he goes out. Tomorrow, i see him. I work with him. He asked me for space and dumped me. And i dont know what to do. I want to talk to him. I want to fix it. I still love him. What do i do?! HELP