I went through a bit of a bump with my ds around 15/16 or so. I think he found it a bit difficult being the only male in the house, so in a way thought he needed to step into the male of the household role iyswim. He did seem to be mimicking his fathers behaviour, so I guess he picked up more than I thought as a younger boy (when his dad was around ).
He began by speaking down to me, and just acting out of sorts in general.
One of the things that I think helped a lot, was that he started a sport which was very male orientated, and involved a lot of time together, basically just a male environment. He started to open up quite a lot to them, and he got male advice. And I think the fact it was from someone outside of our situation helped too.
And I did make it clear that I wasn't going to be spoken to like that, so the fact your ds moved, I am thinking it may be the same with you.
I have a DD too, and I really think he felt excluded surrounded by girls. He even commented on the fact we had a female dog too. We did actually end up getting a male, and he is ds's dog.
So apart from peers, I do think that having an absent father (if he does) may be a factor? But my ds is older now, we got though that patch and we are just as close now as we were before he morphed into teen boy phase.
It is hard though.