What does it mean when your girlfriend hugs other guys?

I have girlfriend but I hug other girls... but I only like my gf. It can mean one of three things.

1. SHES A SLUT/FLIRT

2. SHE WANTS TO DUMP YOU

3. THEY'RE ONLY FRIENDS

If she's the type of girl who could understand that, tell her how you feel. If not... do th same to her.