Hi Sherilee
Could it be that he's not ready for bed, and thus wants some sort of comfort item to be with him in his bed? The reason I say that is that it looks like he's awake for around 6 hours before his afternoon nap, but only awake 4 hours after his afternoon nap... If he can do 6 hours A time in the morning, he might be resisting that 7:30pm bedtime because he's not quite tired yet. If that is the case, what about a 12:30-2:30pm nap? Or limiting the nap to 1.5 hours? Just some thoughts.