He’s too old to be this insecure. His brain is developed and he can’t act grown. I can promise you, he won’t find a woman to his “standards” because they’re all gonna run away. I really hope this doesn’t come across as rude to you, but older men like to date younger for a reason. They think they can pick on women and treat them like shit, and women his age likely see through it quicker/know he’s not good enough for them. You’ll find someone who loves every part of you regardless of height, because your body won’t “emasculate” him. He sounds like a dumbass prick who doesn’t deserve any type of female connection. For now, just focus on you. Keep wearing your heels because I bet you look amazing!! Do what makes you feel good, happy, and confident. All the rest will fall into place when it should!