It's time for maintenance mode since you are in a relationship. All you need to do is continue the same level of macking with your GF, that will keep her interested.
The other thing you should do alter your macking skills with other women (yes, you still mack to other women) but not with the goal of hooking up. Focus on just making women feel good about themselves. In other words, be charming.
Have small talk with them and give complements that are personalized toward each one. Do everything but close. The goal is to get a smile out of them. This will add to your popularity but be careful because it may make your GF jealous. Don't hide your actions because she will think you are cheating on her.
To work around this, make sure that you keep up your full DJ skills with your GF including the close. If you do this well enough, she will become even more interested in you since so many women are interested in you but SHE is the one you are dating.
Oh, one last thing, don't give in to the temptations of the other women. It will mess up your entire game.