Im miserably heartbroken and I don’t have anyone’s support, mind giving a poor girl advise?

I was seeing a man that I work with for 2+ years. He’s the boss and so we kept it a secret. He hired a new girl awhile back and now they’ve formed this strong friendship to which has bothered me for sometime but he always told me that they share the same culture and to not worry. Well it’s hard because in the past I caught him kissing a colleague on the cheek and he said it was just innocent. We fought over that for a long time. This happened 2 years ago when we initially were dating and I worked through the hurt and trusted him. At that time it felt like he was fighting for me. Recently he’s been so cozy with this woman though and even share food and sit with each other. It’s become uncomfortable and I shared my feelings and he fought with me on it and basically doesn’t care about how I feel. Continues to be cozy with her. He won’t sit next to me but he’ll sit with her. And today I had to sit in the other office. She saved a seat for just them two in a room alone. I got upset and he basically broke up with me. Doesn’t care about how I feel and decided to ignore me and have a good time in the office next door. Laughing and all. I have also heard rumors about them at work and he told me they’re not true in the past. I’m just hurting and feel like he choose her over me. I did so much for him and I feel so broken.

Im miserably heartbroken and I don’t have anyone’s support, mind giving a poor girl advise?
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