You forget people you meet. But, sometimes you come across some extraordinarily special people. They have tears to shed, too. They're in love with the girl or that guy back where they used to live, and they all want someone to talk to. So you talk.
Talk is good.
You form bonds you never thought you'd form. You call your old friends and tell them about the new ones. Sometimes, they don't understand. Sometimes, you hurt their feelings. Sometimes everyone is just a little bit jealous.