Moesha, I was the annoying younger sibling. I followed my sister everywhere and it drove her nuts!

Jazzcat, luckily it hasn't been excessive hissing/growling. Like I said it's actually becoming less frequent. But I do feel bad when he comes to see me and she is there. So I just put her in her room so I can spend quality time with Taz.

Thanks for everyones replies and advice! I'll keep you updated on the situation.