I recall one moment with an ex GF, we were the same height, never bothered me, it was what it was. I still recall we went to some even though, she put on some heels and turned around and gave me just the most heart breaking pity look and took off her heels. Man, it never occurred to me it was or would be a problem, but I could see it was to her.

That didn’t ruin the relationship or anything, we continued for quite a bit after, but I still recall that vividly.