Maddy had moved in with him and they were going to have a child together, but a small part of him worried she wouldn't say yes when he asked her to marry him.
He wasn't human, and that wasn't really something he could forget. What if she got sick of that and decided she wanted to be with a mortal?
In the end, Joss decided to take his chances.
"Maddy," he said softly, slipping into their bedroom. "Good book?"