I've seen this soo many times. The black man loves himself a white woman but the white woman loves money more than anything else. The black man is usually broke and thus settles for a heavy set woman with little self-esteem.
But that ponderously large woman thinks she is 'all that'...and really believes it!
While in college, I had a job parking cars. I worked with a slightly younger black kid and we became friendly where I could ask him why black guys often strived to date white girls.
"It's very hard to do, especially if they are blond and fine...", he said. "But yeah, that's the thing..." or something like that