Hope she comes back i well love cats, My cats an indoor/outdoor cat he has a massive cat run joind on to my window with an inside too (good for gettin stoned in) lol, and in the summer he goes outside if someone is with him....

Im sure your cats fine some go away for ages and do come back, when you go away you should put a cat flap in so if he does decide to come home he can get in .... :/ although he wouldnt know how to use it lol and how do i know its a he :/

Anyway good luck lool