It is not wrong dating someone who is not of your race. The only thing that should keep the two of you together is love and not about race or color. This way, you are able to understand different cultures.
Really believe all people are created equal, but I do also see that others don't always see the same as the couple does and sometimes do have extra issues to deal with when making a choice to date outside of one's race. Not saying I believe that should stop a person from doing that though.