I'm sorry that this guy decided to mistreat you.

Yes, be civil and only talk about work.You both need to be professional at work.

Consider finding another job or another store, since I gather you picked that place mainly to be able to work with him.

In the future: don't date people you work with.

In the future: don't hook up with exes. As I see it, that makes it hard for you to get over the ex, and also creates new wounds as you will often if not generally learn that the ex thinks nothing of sleeping with you during "down times" when he doesn't have someone else available.

And definitely stay away from this particular guy!

(((((Shortie87X)))))