[Faboosh]

I'm not sure if this is helpful or if it applies, but when I leave Billi at my grandmother's overnight, I leave a "dirty" tshirt, or our pillowcase, or a blanket from our bed. Something that has our scent on it and it comforts her if/when she gets scared or starts to miss us. My grandmother's told me that she's used it multiple times and it cut down on her crying, getting fussy with her there.

Maybe start bringing things he's familiar with over to your bf's place so that when he's there, he'll feel more comfortable? Other than that, I got nothing. Hope he gets accustomed soon! Good luck with your move!!