Confused

So I have this odd happening I am not sure how to deal with. I was proposed to this morning.
By a man that I know loves me very much but I don't know if I could ever marry him. I was not given a ring, just a promise to fulfill my every want and to give me everything I need.
I know that all this is true, but I am not even dating this man.
I guess once I see a ring I will know