I've heard about a ton of bunnies getting spring fever lately. Bugs is neutered though. He's lately wanted nothing to do with me and it hurts my feelings because we're so close. Before he slept in my bed every night and now he only jumps on my bed when he gets scared. He's been grunting at my sister when she goes to play with him. She will hold his toys in front of him (not directly in his face, but so that he notices it) and usually he will throw it or chew on it. He's grunted and walked away when she does this multiple times this week. He usually gives me kisses at least once a day, he hasn't done it in a week. This all started about a week ago. Should I be concerned that he's getting sick? This is his first spring, I don't know if that has anything to do with it. Is this normal bunny behavior? If so, how do I make him like me again?