I may have overemphasized the good part of it. If you’re a liar, cheater, or coward who won’t stand up for her or her deeply held beliefs (racial, religious otherwise), you could possibly be used by her just for oral sex. I highly suspect it. You would just be sadistic entertainment.
People use people they don’t like all the time. In that case, we need to improve the whole person when trying to make amends.