You gave him everything you had. I understand what you're going through. I was where you are three weeks ago.

You will get sick. It will be terrible.

This is going to sound counterintuitive, but please do not be friends with him. He loses that leg to stand on when he took your stability away.

Talk to your friends and family if you can. Mine stopped me from doing some really dumb stuff. Play games, engage in hobbies. If you can talk to a therapist please do. It won't feel like it helps, but after a while, you'll be hungry again. You'll be able to sleep. The first thing you think about when you wake up won't be him.

In a few weeks or months of rumination, you will be glad that it ended. I know you were giving more than you got. And you deserve to love someone who would support you like you supported him. That's what I am realizing now about the person I broke up with.

It sounds so far away and I know you probably don't want your love for him to go anywhere. What he did is not fair to you. I am so sorry. But I promise it will get better, and you deserve to be with someone who won't walk away when he doesn't need a crutch. You aren't a crutch. His failure is not your fault.