She's checking to see if you're still goo goo over her, as you've been since you guys met. You're like a trophy she checks on from time to time to remind herself that no matter how hard life is currently (here meaning, her not getting the non-black men she really wants), she still got accomplishments (like a black man that has at least something going on, here meaning
you).
I'm sorry if I sound callous, but I'm your brother. Just trying to give you that real.
My advice, either make a move to force a her hand or simply let her go (respond to her messages curtly, and don't call or text anymore; basically
make y'alls relationship fall through the cracks). But to be really real with you, the latter option is the best. This chick needs to be at the back of your memories, and the only way to do that is by making new memories with new women.