Every hedgehog is different with their own personality just like people but his personality will come out more the longer he's with you and gets used to you. It's important to handle him and have cuddle time every day to bond with him and prevent him becoming antisocial
As for not eating, it's probably just upset from moving and being in a new environment. My girl barely ate for the first few days after I got her (I soften her biscuits for her which she likes, makes it easier to eat.)
Closely monitor the eating and maybe soften the biscuits and try offering them with your hand or letting him see you put it down in front of him. Hope this helps.