My now ex-partner was cheating on me and lying during the whole relationship....

Hello everyone,

I have been livid since I found out that the person I thought I loved and loved me (27,F) was cheating on me (25,F) with multiple people while dating me and pretending we were exclusive. I have no way to tell how many, but I think it might have been every time they were free and I wasn't around them, with literally anyone. The scary part is that it seems they weren't even using any sort of protection. I had caught one person and thought it was emotional more than sexual, but realizing the extent of her sexual depravity is so sickening! I have no idea why she would try to make me emotionally commit to her in the first place if everything was just about sex! She's a pure sociopath: no actual remorse, no care for right and wrong, and the hurt she's inflicted on so many people.... She messed up with my head really bad, I thought I was the one at fault for the failures of the relationship, I tried to accommodate in so many ways, when all she was thinking about all this time was how and when she could fuck all those people...

I am so floored. I have found out because one of her exes (a male), that she did dirty in the exact same way contacted me. She actually gave him the excuse she liked women better, when she gave me the excuse she realized she was into men more. Putting 2 and 2 together, and realizing that she has never been faithful is so hard to stomach. I actually had a nagging feeling during the whole relationship, but she was always reassuring me, and lying so convincingly it seems... Pathological liar too! People she was mentioning in passing, now I realize were people she was screwing. I am so mad. She also was my first actual relationship and sexual partner, I feel so stupid and used at the moment...

I know everyone is going to say I should just move on and live happily. But to think she's going to do the exact same thing to multiple other people is so sickening. I really want her to realize that actions have consequences, rather than her continuing on thinking she's so clever and cunning. I don't know what to do. Everything was a lie....