Losing Bush forever?

Bush hasn't appeared in the park, like we hope he would. Sigh. Mom and I really miss him. He will roll on the back of his body happily and rub his face against our legs to greet us. He will slap our hands when he has enough of our strokes and massage or when we disturb his eating. He will talk to us in cat language at times. I really hope he's either well/safe or died peacefully without suffering.