The context of the following conversation is Alex took the dog out.  They forgot to do it this morning.:
Alex says I feel bad I didn't take my dog for a walk this morning..
The friend responds I bet he was waiting at the door for you just waiting to go for a walk.
Alex responds Yea, he wanted to go as soon as I got home and couldn't wait for me to go.
The friend responds Did you guys have a good time on the walk then.
Alex responds We had a good walk and he went to sleep right when we got home.