Some people just can't resist the bait.
>I guess, but it eventually was actually destroyed after the split.
Which split? The crisis of 3rd century? The tetrarchy? The division between Theodosius' sons?
The legal western empire ended with the death of Julius Nepos, and even then it was in a sense continued institutionally via the Catholic Church and the Papal States that would emerge (or the >H>R>E) if you count that abomination). The Eastern Roman Empire continued until 1453.
The physical empire ended, but the ideas and institutions continue to live on.
>By that point, it's just kind of depressing reading about it, honestly.
The middle ages were rough on the east, but they had a remarkable ability to bounce back from the brink of destruction.