What did he want? Barty didn't know what he wanted, what he felt, only that he wanted what he felt. Living what? What about living in the city? Barty lived there. Just the two - of them? Together. Evan already lived - well, owned, which was sort of like living except that he kept damn staying in the castle, and did that mean?
Wait, his mind backtracked slightly to the first thing at hand = living together. Them? Oh, it made him feel warm and happy and so silly, but it seemed so much better, so right. And...
as he'd wondered - did that mean Evan would live with him every night? Every morning in...Wow. He was being asked about moving in, and that Barty liked that. "Yes," he replied first, forgetting it all just trying to have sorted it out, and he was so excited to have anywhere.
Sheepishly, Barty sort of realized he hadn't said as much. But he kissed Evan again "Yes we do," he added, "Make more of them too."