I know, don't shit where you eat. Lesson learned.

I work at a company with 1000 employees, and my now recent ex works with me. She gave me bs reasons, needs space, to be alone, so I told her okay. Found out she rekindled with her ex while dating me and that's the true reason behind our breakup but she doesn't know I know this.

I run into her rarely in the hall or the lunchroom and we just make deep eye contact with each other and go about our day. I still have feelings for her but refuse to chase her or talk with her as I know she was cheating and there's no future.

But how am I supposed to be acting? I try not to look affected but as soon as I see her my feelings for her resurface and I think about her most of the day.