What should I do? MY GUY BEST FRIEND!?

it's normal to stop talking to the opposite sex when you're in a relationship. that's because it's disrespectful to your partner to always be talking to the opposite sex. you're not a consolation prize, you're a friend that was good enough of a friend to pursue after 2 1/2 years of not speaking. just be happy for the time you have with him and realize that unless you guys start dating, you're always going to have periods of time where you guys are close and periods where you can't be close because of the circumstances in your lives.