Hey dating GAF, never posted here but if y'all would have me for a bit it would be great. 
I'm not really looking for advice, but short of an ex who I dont feel like talking to about this, I dont have anyone else to talk to. However advice is always welcome. 
This is all within the last two hours and excuse me for poor punctuation, I'm typing on my tablet.
Two months ago, a previous client of mine hit me up after not seeing me for 3 months. I can't even call her a client as I only worked with her once. Long story short she said she thought I was cute, and would love to go out with me. She was looking for a relationship, but nothing overdone. My current relationship at the time was on the way out so I accepted. We will call her... Nikki. I'm 24 and work for a telecom company, she is 25 and an ICU nurse
Nikki and I go on a date to a restaurant to make sure we each aren't crazy, definitely vibe and depart with a kiss. I told her I like to go slow, and we should get to know each other . We don't. 2nd date, we end up at her house and we blew past first second and third base. We didn't have sex because we both agreed it was too soon, but I spent the night and we bonded even more. 
For the next month, we go on all kinds of dates and enjoy each other's company, spend the night often, to the point where a week ago she states, " I haven't felt like this with someone in a long time". There's a resturaunt that I jokingly spoke about on one of our first dates, that we will know we are boyfriend girlfriend when I take her there. She mentioned the restaurant a few days ago and I kinda played it off while I was planning on taking her there. Red herring though cause we never got to that point.
This is where it gets weird. Full disclosure, I'm black, she is white. I have never dated out of my race, she almost exclusively dates minorities for whatever reason, I never questioned it but I just assume preferences. 
2 days ago she asks me a question over text. Why do black men cheat so much? I Responded the same reason why anyone else cheats. The same reason you cheated (she told me she cheated before). She doubles down and says she and her friend were talking about it last night . Only person to cheat on her was black. Only person to cheat on her friend, black. Its a trend.
 I told her it was weird she would ask me this question as if I am to speak for all black cheaters. I told her I have never cheated (never have), and the concept is foreign to me. I would prefer to break up than cheat. 
She triple downs and says she had a good black friend growing up who told her its normal and expected. I tell her its a cultural issue as a country, considering the high rate of divorce and its unfortunate that it happened to you but shit happens and it just so happened to be a black guy. 
I then ask her "Is that how you see me? A black guy who will probably cheat on you?" she says "heck no, I trust you. Just a discussion". I say ok and go back to work. We exchange texts but certainly not like we did before. She works the overnight shift for the medical ICU so it can get busy, but we don't exchange a text or snapchat the entire night, a first. 
We had plans last night but she cancels saying she's exhausted, she's gonna chill. I say ok, feel better. 
Fast forward to a few hours ago where she texts me she wants us to be platonic friends but that's all we will ever be. 
I'm calm, so I call her, she doesn't want to talk. She said she really likes me but doesn't think she could fall in love with me. She hasn't felt this way long but she feels sure about this. I say my piece without saying anything vile. She said she wants to go to sleep. Ok, goodbye. She texts me 20 minutes later saying she doesn't want to hurt me and she really likes me and enjoys my company.
I respond "And I enjoyed yours, I never knew how you actually saw me, but I get it now. No worries. We will both be fine."
So that's the story. I feel so much better typing it out. Despite this I'm still flabbergasted. Such a heel face turn, this girl had me feeling emotions that I haven't felt in 2 years. I want to call her now, to talk to her, but I know that it makes zero sense to do so... How can you go from 100 to 0 so quick. How can we enjoy each other so much to have this happen ... I never gave her any cause to think I would cheat, I don't know what I did wrong. Maybe I was too blunt? 
Who knows. On to the next one, whoever that might be.