Cute pair you got there in those two. Males tend to be lazier and more lethargic than the females so that might be why he's a little calmer or takes to being handled more. The males also secrete urine onto their testicles (scent marking) when they walk so if you handle him, you might want to wash up before shoving your hand in the chip bag, lol! Could also just be their personalities. Depending on their age/weight, you might not want to keep them together quite yet. If the female isn't old "enough", per se, or up to weight (5 months/250 grams or thereabouts) she might not throw a very good litter in terms of size and health of the kits. Not trying to dash your plans, just something to consider. Regardless, they're good looking animals and I hope they turn out for you. Good luck!