
Not understanding what it's like to be in the dating stage. I'm married now but we dated for a few months before we decided to go steady as partners. Years later came the engagement and marriage.
The uncle is probably thinking he wants to rush their relationship when he's just in the headspace to date right now, which is valid.
Like they haven't done anything yet but the older brother is being creepy. Argh...can't they just have a good relationship and the older brother find someone else.