I didn't really care about the couples in my high school cause I wasn't really friends with them or didn't know them personally.
I think I'm gonna do a rewatch soon. Start from season one and everything.
It really does feel like the spirit of the show ended with season three, to be honest. The structure of seasons four and five just didn't end up working because there wasn't enough of the original chemistry there anymore (mainly due to the fact that a lot of people were only used in guest slots/split geographically (Brittany and Santana, at least), and in general were just poorly used.