>>Ok, let's say it was your best friend. What would you do?
>
>Same. As long as I knew she/he was ok (not dead or hospitalised), and I'd only been twitted, I'd get on with my life.

Can you meet him/her regularly, see him/her conversing with other people and not being jealous or anything of this kind of feelings? Say, you still want to communicate and be friendly and need to supress and control yourself every day?