So, haegyung doesn't actually have a jinx, its just woojin being a psychotic ass?!?!??!?! ...

Nah I think he only got involved after the last guy. That's how I understood it anyway...

no, he wasnt around haegyung until the green haired guy. I think it was just bad luck and coincidence up until that point. Also, the green haired guy was in the wrong anyway, he wouldve had to break up with haegyung due to the marriage/his other affairs eventually, or he wouldve strung haegyung along.