Those types sometimes care more about the ring than the partner.

I have heard of them, "he hasn't proposed yet so I left him" kinda thing. That guy was probably happy with things and completely unaware she expected anything to change.

I do find it odd that when I have looked at posts about it before the vast majority of weddings seem to be super expensive or super cheap. Very little in the middle. Like 3 digits going to a pub for food or 5+ getting fucking everything.