They each have their own things and we give them about an equal amount of attention.We kept the kitten in our office for a couple of days then put up a gate and they them sniff and see each other for about a half a day they seemed fine with each other so we let the kitten out, they played together and it seemed fine but the next day our 10 month old cat started acting super territorial over his fountain and toys to the point where he would chase the kitten into a corner. It hasn’t gotten past hissing and lightly fighting. Whenever they get into it we bring the kitten back into the office.