Why did my girl friend break up with me?

I am seventy four years old and i need your advice on how to win back my woman. I just dont understand why some one as ugly as her would dump some one as smokin as me?!?!?!? I shower every month, brush my tooth every time i bite my toe nails, i never pick my nose (i do pick hers everyone once in a while.) I even change my underwear WEEKLY that is a STRETCH!!!!! WHAT SHOULD I DOOOO?!?!?!?!?