Engagement/proposing

Ladies,

At what point/how many years do you think an engagement/proposal needs to happen after you’ve expressed to your significant other that’s what you wanted and they still haven’t made it happen?

I’ve been with my S.O for 6 years, we have a child together. I brought this conversation up almost 2 years ago. Since that conversation he has done just about everything he has wanted to do and spent his money on what he had no problem spending it on after he told me financially he couldn’t afford an engagement ring.

Bullshit and time to leave or be understanding?