Most Helpful Girl
5''9 is perfectly fine. I'm 5"7, tall for a girl... I probably wouldn't date a guy shorter than me but the same height is totally okay, a bit taller even more. And to be honest to feel safe or protected has nothing to do with how tall a guy is.
I've dated this guy, kind of buff, 6"4, a cop... and I didn't feel safe at all... the guy I'm seeing now is 5"9, average build and it's a whole different story.
To feel safe and good with someone is a matter of appearance, behavior and attitude in my opinion