It really depends on what you need at the time and who is offering. An adult can be a good person to talk to about things you dont think your friends or parents would understand (depends on the adult), a gf or bf could be good for just chilling with and trying to think of something besides your problems. One of the reasons I was called emo mom, besides my son naming me it, I used to talk to the kids on an MCR fansite (I am a huge Ray Toro fan) who wouldnt talk to adults in their own lives. Sometimes I just want someone to go to lunch with me, ya know?