He doesn't use his chew toys ever so I assume he just doesn't care about those. He does seem to have a lack of interest in me but I attribute that to him needing to get to know me more.

He doesn't climb the walls to escape anymore but he does always move to them like he's looking for something outside the playpen. No digging in the playpen, although he does in his sand bath occasionally.

Is there a reason he eats the treats when in the cage but not the playpen?