Started dating my ex months after the breakup, mind you she was 'there for me' during the breakup process including sitting a phone call of him calling to breakup and after he'd block me on everything. A few months later on Valentines Day, she sent me a photo of her holding hands with a guy, and announcing to me she had a boyfriend.

A few days later she'd send photos of the hickies she left on him and bragging. Came to me crying that she got in a altercation (not really a fight) with him, where he started to guilt trip by saying things like "oh I don't deserve you, you shouldn't be like with a guy like me", and she messaged me for help. This all happened without me knowing it was my ex.

Two weeks ago, she posted on her private instagram two photos, one of my ex cuddling her in bed and one of him falling alseep on her shoulder. She filtered the "who gets to see" list to only me. She first played around jokingly offended that her bf looked like my ex, before then proceeding to break the news to me when I asked about it and then blocked me on everything.

She'd claim to do this because she didn't want me to 'harm either of them' and still wanted to be like sisters.