Will my kitten be ok I left it home alone?

First, you should go to a vet and ask. Kitties are quick learners, and once he learns the litter box things will loosen up. He's angry because of the small space now, and that's why he has mixed feelings. He's free to be your buddy when he has more space. And I know the guilt and sadness can be terrible, but they'll p. too. When he learns the litter box, would it be possible to give him the bathroom/hall/kitchen (for the floors)? And make sure he has a soft bed lined with a towel or old blanket you've slept with (he'll cozy up to your scent), and some toys and maybe a scratch station or post. Cats sleep 2/3 of their lives, mostly during the day, by the way. And two medium-size boxes--one upright and one on its side--are always a big hit, and put a slept-on towel in each of them. My daughter went through all this, and now her 2 cats, Possum and Ivory Rose, love to go on looong trips in the car with her. Time to go to Petsmart and ask some of your friends with kitties what toys are good. No accounting for tastes, though.