Be on time.
If you’re usually on time and running late once, alright. No worries.
If you’re always just five or ten minutes late, no worries.
But when you’re late, every time, by a significant amount of time, it really sucks.
It makes me feel unimportant, insignificant, and that you don’t make me a priority, and like you don’t actually care or are excited about spending time with me. This is really not okay.
And I’m not overreacting, I’m not being immature. This is legit. And rude. And inconsiderate.