Welcome to YT. I'm so happy to hear you took in this little boy who really needed a home. I wouldn't worry about him yet. I've fostered many of these guys and some just take a little longer to find out they are truly home, especially the ones who have gone to other homes first. Some of these little ones (usually the males) don't ever show a whole bunch of affection, but love getting it just the same. Just treat him as though he's always been part of your family. He has a lot to learn yet before finding his comfort zone.
