Do not get your hopes up and keep doing what you are doing, but... looks very promising! If you were not married to the guy, just dating him, and he were doing all those things, how would you feel?
I do think he is testing the waters... but you are going to be careful... do not do anything to make him run away... and keep giving him space.
Do not be surprised if he walks in one day and just stays, no fanfarre involved.
"You don't throw a whole life away just 'cause it's banged up a little"
Tom Smith in "Seabiscuit"