I'm not very good with these sorts of things, but I've become very attached to you, since you surprise me nicely all of the time. Please go out with me!... You know, that sounded a little weird.Umm... I wonder what you say in a situation like this...... Thanks for treating me?
This is the same "itadakimasu" that is said before meals.Uhh... Wasn't it my turn to surprise you today?(But thanks anyway.)
This is the same "gochisousama" that is used after meals.