Listener question: a break-up and I can't get a grip

I have had a tough time in my personal life. I was in a long distance relationship for 2 year with someone I adored. We hit a rough patch and decided to be friends but instead of that he has ghosted me. it has been around 6 weeks and i am having a hard time getting over it. I feel with what i know I should be okay by now. I have no idea why he has done it, no closure and i cry a lot. I cannot seem to get a grip even though i know there is no me to get a grip. Can you speak to this please if possible?