First of all, happy belated birthday to you! 30 is an awesome age!!

I agree with others about letting him go both emotionally and physically. People can file a police report for harassment so you can think of not contacting M. as a way of protecting yourself from legal troubles.

A one-way relationship is no relationship at all. You are still very young and have a bright future ahead of you. So moving forward, you can invest in a two-way relationship where the commitment is mutual.

Best wishes to you.