This could have gone wrong for any number of reasons......
But it seems like these interrracial relationships really don't work unless one person is different culturally than their actual race. I've dated a few white girls that were enamored by black men but were flat out just too white for me and since I'm not the Russel Wilson type black dude, it was flat out annoying to be around them after a while because they didn't feel like home to me. I ended up just wanting to be around a black woman.
As I've gotten older, I've realized how so many relationships only really work because you're attracted to each other sexually and if it weren't for sex, there's nothing else there. You end up having nothing in common, no similar interests, no jokes that tie you together.......it's just flat out annoying to even be around them cause you'd rather be doing literally anything else than hanging with your partner.