I brought two rabbits together, Male and a female, they were together for 3 months however recently the female rabbit just died and the Male rabbit looks terrified , I tried to let him go out but he looks like he is looking for the female rabbit which recently died, now he doesn't eat as much, and he doesn't walk as much and he stays in one or two places. I am really worried it been 2 days since the female rabbit died and my mother told me that we will get new rabbits by Friday which is 4 days from now. What can I do to make my rabbit better. He is shivering and makes sounds when I move the cage .