To hear this is soooo theraputic! I thought we had done something wrong with our children! TigerTiger and Pippin have both gone through this phase too. Pips is in it big time - he used to cuddle and sleep on the pillow with us and then one day, he just stayed out on the futon all night. It was downhill from there. It's like they all of a sudden have waaayyy too much on their little adolescent cat minds to stop and be hugged and loved. TigerTiger has always been a shoulder rider and NEVER liked being held belly up in our arms, but he would cuddle. Now he's kind of getting back into the idea that snuggling is OK, but he has to initiate it. Until they get older and come to appreciate it again, we have Willie, who LOVES to snuggle up and will bug us until we go to bed at night so he can get in and get comfy.
Yeah, it's got to be a teen-age thing, and in our case, a bit of a "boy thing".