Oh, if you like that sort of thing it can be very lovely. I would expect anyone to behave in an appropriate way depending upon the circumstances. I climb trees, I dig flower beds, re-roof the shed and hang paper, I am not weak, but I do like good manners.
I think you are over thinking all of this OP. He likes you, you like him. I am in favour of having fun, flirting, being affectionate, saying sweet things, and asking questions in a non confrontational way. I think honesty and transparency is important but I really do not understand the modern obsession with labels and titles, FwB, fuck buddies, dates, boyfriend, fiance, exclusivity chats (contracts)...blah blah blah. There are more ways to skin a cat they say! so there are more ways to find out his intentions.
I would more than likely wait for a lovely fun affectionate or romantic moment and say something like "do you think we will fall in love" Say it lightly with no expectation. Say it in a way that sounds as though you are thinking aloud, rather than cross examining him. I think he will tell you he already has feelings for you. I don't really see anything risky about it. What can possibly go wrong, he doesn't respond: nothing lost, you haven't asked him for a relationship, and plenty of people have those without being in love anyway. If he does have feelings for you, he will be very glad that you have given him the signal to tell you. I think we forget that men probably have all the same fears as us.
Oh and good luck x