Tamahome x Miaka (Fushigi Yuugi)
I'm sorry... but they annoy the crap out of me.
Seriously.
PLUS! They're worse in English (which is how I originally saw the series back in the day)!
Tamahome! Miaka! Tamahome! Miaka!
Back and forth and back and forth and ARRRRAAAAAGGGGGHHHHHH!