I have a 3 year old female that is an in and out cat. She started running away a year ago and living down the street in an empty unfinished house. She comes home once a week and stays a day or two. I am now away for 10 weeks and house sitters say she rarely comes home. When she does come home she cuddles and sleeps happily and eats. She is healthy in appearance. Should I worry or is she simply doing her thing?