I think it's like girls who don't want to date a guy that's skinnier than they are. I know a few girls who are insecure about their weight and don't want to date skinny guys because it makes them feel fat. Similarly, a lot of short guys feel insecure about their height and dating someone taller than them might make them feel uncomfortable with themselves.
My best friend (who's 5'7"), once told me that he couldn't date anyone taller than him, and though I respect my best friend's opinion, I just couldn't understand that way of thinking. In my mind, it's simple: if I'm attracted to her, height doesn't even enter the equation. But in the interest of full disclosure, I'm 6'2", so I never really have to confront that issue...in my defense, I would feel the same way if I were 5'5" though.
I knew a woman that literally would not go out with another guy, no matter how much she liked him, if he was the same height or shorter than her. And she's like 5 foot 6 or 7. Literally, completely writes off anyone less than an inch taller than her. Honestly, dating a woman taller than me would be just a tad odd, because I'm 6 foot 1, and that would have to be a damn tall woman, but I could totally work with that.
Lots of girls prefer taller men, so why can't men prefer smaller girls?
My girlfriend is an inch taller than me, I'm only 5'6! I'm short yeah that's obvious but my girlfriend is the FIRST girl I've been with who hasn't brought up my height. I've dated a decent number of girls before meeting her all shorter than me and THEY were who the ones would always ask me if my height bugged me weird how that works.
Do I feel emasculated? Not at all. I'm really not trying to brag here but I do work out and I can pick her up and carry her around pretty easily, she's about 15 lbs lighter than me. Maybe not the best example but its something, now if she was maybe 3 or so inches taller than me than at that point it would start getting weird for me.
Not always. I am about 5'9 - 5'10 and my girlfriend is 6'2 - 6'3. It was really odd at first and it did mess with my head, but I loved her long ass legs too damn much lol. Now we are at the point where I want to start losing weight again and she doesn't want me to because she says she doesn't want me to get smaller than her. It's the same either way, both just mess with our heads. It's just a mental block you have to work at to get over.
Look at it as a blessing. If 5cm is enough to make him feel insecure, imagine all of the other things you'd have to cater to in a relationship with him. It would be constant ego stroking and walking on eggshells.
Well the truth is that girls like taller guys and guys like shorter girls. Its unfortunate but true in most case's. I have a cousin that is educated, beautiful and I mean super model beautiful, a president of an accounting firm by age 25. She is 34 now and won't settle down cause she is tall and want's a tall guy. She is like 5'9" I think. She is so picky that she may end up being single forever. There was a guy she liked once but he was 2 or 3cm shorter then her and she didn't like it. It goes both ways is what I am trying to say. To me that's not a big deal but for others its the end of the world.