Calling all boys to answer this?! confused on lingo?!?

in general boys... what does it mean when you tell a girl you are committed to them and are exclusive and only like them and seeing them but use the term dating and seeing each other and when the girl brings up a relationship the guy says oh girls and relationships always need labels on things. i know hes super genuine but im jw is this just a committment issue with terminolgoy or will i ever be this guys girlfriend? weve been seeing each other for 4 months now one of the months is now long distance because were in college and home for summer but we have 2 more to go till were bak in same city and i dont wanna bring it up while not in person? we plan to have sex for first time with each other wen bak (not virgins just first with each other) and i want him to call me his gf?