Hopefully he is just sulking
I had a ginger cat called Whiskey. He was beautiful, really loving, talked to you, would try to follow you when you left the house etc.
Then we got two more cats Bandit and Smokey and everything changed. Whiskey became really withdrawn, hated to be picked up, would fight anyone and anything (beforehand he was really timid - wouldn't attack anyone). It got to the point where we were somtimes scared to touch him in case he attacked us.
It was so sad
