And that's okay. That's one of the points for fiction.
It was either just today or yesterday, at some point in the near past, where I read a post of someone bemoaning on reddit (I know I know. Skewer me all you want) the trope of the tall boyfriend coupled with short girlfriend. Got down voted and plenty of post saying that's real also.
Anecdotally, I can confirm that's how my brother-in-law and my sister are lol.