He should focus on controlling the controllable s.
It doesn't matter how good-looking you are, how romantic you are, how funny you are... or anything else. If she doesn't have something INVESTED in you and the relationship, preferably quite a LOT invested, she'll dump you, without even the slightest hesitation, as soon as someone a little more "interesting" comes along.
Quote taken from The SoSuave Guide to Women and Dating, which you can read for FREE.
Talking about shooting yourself in the foot...At some point we were dancing with the girls and he said to one of them "if I was taller I would ask you out"
Unless/until he chooses to take off the victim mentality glasses that he experiences life through, he will remain perpetually stuck and unable to clearly see/understand how significantly their constricted perspective affect him and his life.His biggest problem isn't being short, his problem is that he has a victim mentality.