At the beginning of December, we purchased a 2 month old kitten for the household. He was a birthday gift, but also somewhat of an opportunity for companionship for our 8 year old female who has lived alone her whole life. We read up on how to introduce a kitten to an older cat, and carried out the instructions. It didn't go as bad as we thought... she would give the occasional growl and hiss, but no overt physical aggression. However, ever since we released the two to mingle around a couple weeks ago, it's been a bit rough for the two. The kitten is super energetic and always wants to play, but our female wants nothing to do with him. It's understandable, she is older and has never been super playful. The problem is, while they can tolerate each others' presence in a room and even sit next to each other at times, our female will swat and hiss at our kitten if he comes too close. I've been reading online and a lot of people say you have to start the introduction process over if it doesn't go well... should we? Another thing I'd like to note is that we have tried giving our female treats in his presence, and have even purchased a Feliway pheromone diffuser. Any help would be much appreciated.