is a combination of Ex & obsessed. It describes people who won't get over their ex boy/ girlfriend. They want to get back-together with them. They just won't accept the fact that the relationship is over and there is not a chance they will get back together.
Ed: Rae says that Devin still likes her but he "doesn't want anyone to know." Sure, sure.

Cher: Him and i are like siblings, and I KNOW he is OVER her! She needs to let him go, Rae might still like him but he doesn't feel the same way! It's been over a year since they broke up!
Ed: SO TRU! Talk about clingy! She is so Ex-cessed !!!
by UrbanContributer August 8, 2017
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When you date and break up with the same person so much that it becomes a routine.
Justus: "Are Brian and Katie really back together AGAIN?"
Aaron: "Yep. They've dated to ex-cess already. Watch, they'll have a fight within the next few weeks, they'll break up, and Katie'll be running back to Brian a few hours later."
by Shit Zoo August 10, 2011
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