From recent experience, I was in a close friendship with a girl for 3 years towards the end of my grade school life (still in high school). We spent countless nights staying up talking to each other past midnight, she was the first person who actually seemed genuinely interested in what I had to say regarding philosophy. I felt like I had finally found a true friend, but then what happened shortly after struck me like a brick. Out of nowhere, as if it was overnight, she got into a relationship with a guy she only just started hanging out with. I deduced I meant hardly anything to her, I responded by distancing myself. As time went on, her relationship crumbled. I made the mistake of trying to talk to her again, I found myself surrounded by everybody I had grown to hate now being somehow a part of her life. I told her the reasons as to why this irritated me (either because of being physically or emotionally hurt by these people in the past), she acknowledged my concerns and told me that I was the only person who understands her. I realized that I'm the sort of person that you can either hate, or respect. I presented her with an ultimatum, either leave me alone and hangout with her 'friends' or if she actually valued me... to stop supporting my enemies and to act by her word. She did not feel comfortable about this, I kept the doors open until she made a choice. She told me she was going to stop interacting with those people and spend more time with me, I quickly noticed that was a lie as the very people she said she was going to ignore somehow knew all this information that I didn't such as the details of why she was away from school that day etc. I was fed up by this point and called it off, and in a final attempt to manipulate me back into the friendship, she burst into tears. I asked her if she truly respects me as a good person, and her answer was yes. My final question was "then why are you doing this to me?", then she told me... "I don't know, I've been acting inadvertently." yeah... for three years... *sigh*
I've learnt from this experience that 'People are who they associate with.' So far it's been tough completely cutting myself off from her as I'm imprisoned at school, forced to be in close proximity to unstable people. But this has all resulted in me becoming extremely cautious as to the kinds of people I choose to interact with. I believe expressing myself on this forum will narrow the spectrum significantly.