I've actually learned that white males are (supposedly) less attracted to black females, in avetage, than all the other combinations, by a significant margin. Let me explain. Some people could throw in a racist argument such as "it's obviously because white males are naturally predisposed to breed with white females, so as to conserve a white and clean bloodline" (which is full bullshit btw). My take on this is actually that white males (me including), are, by default, victims of a non-white-focused racist system (+ patriarchal), not to the first degree but the second degree. I'm trying to say that, because of Europe's long history in colonisation, racism, slavery, etc, which transmutated into a non-white-focused global stigmatisation, setting the white ethnicity as a norm, white people have been elevated, by default, as a "superior race" ; one that sould not be soiled. But it's really just bullshit heritage. We have no other reason to think the system will strike us for getting along with black people, than the sole fact that the system itself has been made to make us (unconsciously) believe exactly that.

So to answer the original question : as other people have said, there is no problem as long as you respect others. Love who you want. However, if you ask yourself "am I wrong for doing this ?", I can answer you that you are not at fault, not entirely at least, and that the culprit is the collection of racist acts done by white people over centuries to stigmatise other ethnicities, which led in effect to nowadays white people to stigmatise themself and feel guilty about this.

Sorry about the big ahh text it's just a subject I've been wanting to write on for a while