Hates it but it doesn't kill it (thankfully?)

"Bleargh! Just like my Uncle Artilllineeess' pen fluid for cleaning out your holder," says your  pen, then it spits it out. Like I said, you don't see it doing it, just notice it.

"Learn to be grateful, little pen. I actually used some of my red ink for you, and you aren't grateful?"

Hearing this, the pen immediately humbles. Great, so it still believes you.