What should I do? Help!

My ex-boyfriend and I recently broke things off we were together for three years.  Our relationship was really toxic and we had a lot of problems. Right now we've been separated for almost 2 two months. He left for good because he said he was tired of fighting and I relationship wasn't going in a positive direction however he contributes to most of the bad behavior keeping the liquor and drugs around I had to make the decision for myself if he was best for me.  I am emotionally invested in him and I really still want him back he text me but I've been doing the no contact anyway it's about time for me to break the no contact for 30 days tomorrow I do love this man and he is my life what do you think I should do? He's been reaching out since we broke up at first he was really mad but now he's asking how I'm doing and how things are going and to contact him.  We've been through a lot but I feel like the reason we broke up was so small and petty what would be the best advice on the situation right now