Hi, was in this situation 15 years ago, same way older tom ,girl kitten. she very rarely is seen in the house (not out just hiding). He is very sociable, will go to anyone for affection. He lets her eat first still, and will take the occasional swipe at her, just to keep her in check. He was ill some months ago with thyroid problems, and she came out of the woodwork, and cuddled in his basket with him, but now he is on the mend, she is back to hide and seek. I am sure they will be fine, they are a bit like humans unpredictable.