You did good. I feel the same. All races of men feel this way about their women. Why are black men "insecure" for feeling the same?
Whiteboy finds out a white woman has slept with a black man, she's "tainted". Its always been like that
...except that's not the case here because....
Aite, backstory.
Bout 2 months ago, I met this chick and been fukking with her since. Around the time we first started talking, we got into the convo of dating and our types. I told her I only date black women and she told me she doesn't have a preference and dates any race and that her ex was white
So im like cool, that wasn't gonna stop me from fukking with her, however, it was gonna stop me from getting serious with her since I cant seriously be with a chick whose been with white guys( of course I didn't tell her that at that point cause I was tryna fukk
)
...and OP might be a decent dude and all. I could never know him personally, but your actions seem kind of corny, IMO. Cape smiley me down if you must, but it just comes across that way.
Seems like you're pumping and dumping a black woman (who you claim to "love") while using pro-blackness and your feelings about oppression as an excuse...
Just be real with yourself and realize that you really didn't feel her like that...or when she told you off-rip, you could have let her know how you felt...OR if you're really savage like that, then fukk, lose her number, and hit her with the "who dis?"
You're in here sounding like it only bothers you that she wants a relationship but it's pretty apparent that you want to keep her around.
She told you what it was up front and if you truly felt that strongly about it, you would've kept it pushing before you started fukking the chick. Let's say you knock her up. shyt happens. You're leaving that black kid in a single parent home because she was up front about her past and you chose to fukk anyway? To be fair, I think it's just as corny when guys on here preach that "I only love black women. I mean, I might fukk white chicks, but never anything serious." If you're truly that pro-black then you shouldn't be presenting any opportunity for procreation.
.
Talking about past relationships or not is a choice everybody has and if you are not ok with it you just have to stop seeing that person and that's it. 
Did you see me call anyone tainted. If we all have preferences, why you tripping of mine ? 
It's a territorial thing breh
and vice versa....
just stop dropping gems and let these nikkas have children out of wedlock with someone that they are incompatible with...
They say nothings a good teacher like experience....