you should be the one who break this cycle. And you should do it for a very good reason: yourself.
You should never love anyone more than your well being.
If loving this man makes you sick and sad, then you must cut this rope.

I know it's not easy. I've been there. It took me 6 years to decide that i really did not want any of him. It may seem a long time, but it's over now and I'm free.

Please love yourself much more than this person can do.
Please.