We are both 22 years old, young and fresh out of college. We have been dating for 9 months and I noticed yesterday one of her bestfriends on snapchat is a guy we went to college with, originally I didn't care, I'm attractive and know my worth so i'm not going to address some guy as a threat. Thinking back at it though I wonder if I should even be with someone who is possibly still exploring options, I flirt with people when i'm out and I am sure she does too but I think snapchatting manifests that into a more advanced level. Do I go on unbothered or do I shut it down?