Does she really deserve a loyal and loving companion like you? If so, good luck, in the sincerest way. If not, however, there are plenty of nice girls on this planet with kind souls who do deserve a nice guy as a mate. You may be better devoting yourself to someone who appreciates it.
But you're in the driver's seat and only you know all the facts, and your own heart, so you're perfectly welcome to condemn those other sweet girls to a lonely spinsterhood or a marriage to another guy who's not half as good as you ...
Good luck either way.
