If you keep yourself pure, you will be a special utensil for honorable use. Your life will be clean, and you will be ready for the Master to use you for every good work. (2 Timothy 2:21)
What does it mean to honor someone in relationship? First, it would involve no "stringing along" from the get-go. Isn't it kinder to say, "I'm sorry, but I'm not interested," than to accept a prom date with a boy you know is looking for a girlfriend? Being kind is not the same thing as never hurting someone's feelings.
Second, it means observing boundaries. But we're not just talking sexual boundaries. Purity is a heart condition...curfews, speed limits, budgets, confidential conversations...anything that will help you get used to denying the almighty you, the unrealistic and insatiable need to get anything and everything you want! Relationships are about putting other people's needs ahead of your own.
Finally, it means being real. It's not difficult to be the eye candy hanging on a cute guy's arm..the right clothes and a little bit of make-up will transform anyone into Cinderella for a night. But we honor others, girlfriends compliments we can pay others is to admit that we like them...not in a romantic, gooey sense, but for who you are. Spending time with others because you legitimately like their sense of humor, playing board games together, or learning how they think is way better using people to establish image. Choose the people you hang with for interpersonal reasons...including those who you date!
Evaluate your relationships, girlfriends included. Are there any you are in simply to get a step up in the social realm? Gently and kindly walk away from those relationships..they do not prepare you for honorable service.