We stayed in touch. We were still acting couply for weeks. I then found out he had a girlfriend. That killed me because he hid it from me and clearly had been using me emotionally. I stopped talking to him.
A few weeks later he got in touch and we met up. I thought we could continue being friends because we both missed it. He told me he hated that I didn't talk to him anymore. That's when he told me they had split up. We got close again, after a month of contact/intimacy I suddenly found out he was seeing her again. He had used me again. This time it has destroyed me.
Having to work together makes NC impossible. Although it has been a couple of months I am still not over him but I don't let on I just avoid him but he finds me. He continues to act as if he's done nothing wrong, keeps trying to talk to me but all the while he flaunts his new relationship on FB. They've even bought a house together after 4/5 months. He doesn't discuss his current relationship with me but keeps telling me about other achievements. I don't respond but he doesn't let up He told me recently really happily that he'd passed a major exam. After months of having to see him happy while I'm hurting I snapped. Told him I don't care and dont wish him any joy. He looked shocked and walked away broken. Ever since, whenever I look up I catch him staring at me from across the office.
What is going on? He's really got under my skin.