Most Helpful Guy
He thought "dating" meant "going on dates" since he distinguished it from being in a relationship; and you thought "dating" meant "in a relationship." I'm not sure why he confused his own definitions; that's his fault.
Most Helpful Girl
I don't think he wants anything serious or exclusive with you. If you're looking for a relationship, I suggest you look elsewhere because this guy is not going to give you what you want and you're just going to end up more hurt the longer this goes on.