Besnik is a very cunning and smart familiar. He bonded with you because he knew he'd be able to move around and do what he wanted freely.

You were an easy master to deal with, until the feelings kicked in that is. Besnik found himself wanting to dote on you, wanting to follow your orders, and wanting to never leave your side.

He hates that he caught feelings for something so...weak. That doesn't mean he doesn't love you though, so he'll die for you if he has to. That's what familiars do.