Girl taller than a guy is that right?

Hey guys,
Was wondering how you deal with heights?
Okay I recently met a guy online who's smart handsome and sweet however there's a problem we are planning to meet up one of these days but I'm not secure about my height. I'm 5'7 I love wearing high heels and realised recently that he's exactly the same height as me which means that I can't wear sorts of things around him otherwise we are gonna look weird together. I honestly don't mind wearing flats every time around him but that's not my style.
Any suggestions?
Shall I stick with the flat shoes?