I haven't had a puppy since my Boxer in 1983-- it's a good thing they are cute, because there are times you're tempted to take them back.
Cats are a lot easier on the nerves. You did a good thing, rescuing a stray- they ask so little, and give so much back.
She is a good buddy..Like you I had lost a beloved pet..another once stray kitty..and this one has gradually wormed her way into my heart. Good luck with your new little "home wrecker"..LOL!