I'm sorry you are going through this.

LH makes a very good point and maybe he will repost for you here about WW have been trying to save the M for awhile and you didnt even know you were on trial. He has had a lot more time to adjust to his decision. And you've only had since March.

And, frankly he isnt coming back in this moment. Feelings are fluid and change all the time.

You can do 1000 things to make sure he never comes back or you can do nothing outside the fact that you are living your life to the best you can. Remember people tend to want what they can't have. Become that amazing ungetable girl! That's attractive... living your life like you don't need him
Way easier said than done.... I know!!!!!

Get an atty.

Get your ducks in a row.

Chin up and act as if.... hugs!!!!