What should I do

Broke up with crazy gf

So let me start by saying I’m new to Reddit mostly and usually just look and don’t post so my deepest apologies if this is on the wrong subreddit! I recently broke up with my ex girlfriend about 2 days ago because she cheated on me with her ex.

Let me start from the beginning.

I started a new job at in late may (it’s august 25th right now)

I met my gf (call her Christy) not her real name) Christy was very quiet and didn’t talk much to me. Didn’t really think much about her until one night she somehow got my phone number and texted me saying she was interested in going out on a date… at first I was hesitant but agreed because I thought what the hell why not. I decided to go to Starbucks and we went on a walk for a bit and got to know each other more, the date went very well so we starting talking over Snapchat from text and everything was going really good, I felt that I was really getting along with her. After a little while of texting we started seeing each other at work and things just kind of went there really quickly, not even two weeks later and I had asked her out and he happily accepted. Note that she had presented herself as an extremely honest Christian women who was very loyal, she also constantly reassured me she’d never cheat or do anything of the sort, i believed her. This is important because not even a week after dating she started talking about her exes, I don’t mind talking about that but she kind of threw me off guard when she started talking about her most recent ex, we will call him (A) Christy had told me she was her most “favorite ex” out of all her past boyfriends and she even made a little gift basket for him with candy and stuff to give to him after the breakup… I thought this was extremely odd and I had asked why they broke up? She had told me it was because her mother didn’t like him and made her “choose” between him or her. Christy still lives with her parents so she really didn’t have a choice but to pick her mom and broke up with A. Christy had also told me she will “always love him”. Despite this I brushed it off and continued to date her, I did think it was very odd but I’m not really a jealous person so I didn’t feel the need to push it on the subject, I figured she was with me now and that’s what counts. I may also add that she had broken up with A not even a week prior to her asking me to go out. Anyways 2 months have passed to now (24th) we just went on two trips together and I honestly felt like things were going very well, until one night she texts me saying she needed to tell me something. I reassured her it was okay and she preceded to tell me she made out with her ex (A) while I was at work, she had done this in the parking lot behind where we both worked. I was upset at the news and didn’t break up with her right away but expressed my grief to her… it was at this time she explained that somebody hacked into her account and said those things to me, long story short I realized nobody had hacked her account and she has made that story up, I’m presuming because she was scared of me leaving. She then went back on what was said and explained she’d never do something like that and it was all lies… I was able to contact her ex and he and I had a long conversation where he actually has sent me photos of him and Christy conversations together which date back to July while we were dating. I had showed her these photos and she still continued to deny what I had showed, insisting her ex was lying, her ex never worked where we worked so never would have known what times I got off work and went it etc, I explained this to Christy and she got upset saying she’d never do something like that and she’s 100% loyal, she followed that up by love bombing me. I had a really strong gut feeling she was lying so I had told her to come clean and I would try and make the relationship work (which is true, I wasn’t lying) she continued to lie to me and reassured me she wasn’t cheating, she even showed up at my apartment unannounced trying to talk but I didn’t let her in… I told her I didn’t want to talk to her right now and I ended up breaking up with her not to long after. A day or so later she texts me saying she’d never do that and I just had to believe her despite the inconsistencies in her stories and the fact she couldn’t disprove the texts. A day after that she texts me saying she did infact see him but they only kissed and that was all, I told her I didn’t believe her and she had lied to me so many times that now I could not believe a word she was saying. She got her mom involved and now she’s just trying to guilt me and make me feel bad. What should I do?