The Hate is Only Temporary
It's that time of year. The most frustrating time of year.
The school year's basically over. 3 days per class left. They don't care anymore (some never did), and you're just trying to hang on until the end with all your books ready to turn in, all your grades completed, all your loose ends tied off.
Then it hits you...
"I HATE THEM."
You don't really hate them. It's just that the mix of your push to the end and their spring fever is, well, volatile. You'd like to just give them the Final Exam and get them the heck out. They'd like to just take the Final Exam and get the heck out. Neither of you can be satisfied.
You hate each other. But it's only temporary. What you both really want is to move on.