Interesting ex girlfriend situation?

So a week ago my girlfriend of 6 months dumped me. She wasnthappy with and needes to be alone. Heres the twist: We work together and everyone took my side being that such a nice guy and she just dropped me out of no where and was beong a ***** tome. I still have feelings for her. being that i see her at work is it possible she may crawl back? i want her back what should i do being i have to seeher. thanks guys its a sticky situation and harsh onme!!