She chooses to pair up with her rather than you. They call your friend's name rather than your's. She only comes to sit with you after her other friend leaves. She says she's her best friend, not you.
Every single one of these scenarios has happened to me throughout my life. I may be the third best friend, or the second best friend. But I'm never really the best friend.
Sometimes in conversations, they'd rather be talking to someone else. They make you feel like they'd rather be with those people over there. In groups, they have more jokes with the other person, they don't laugh as much with you, talk as much with you. You're second best to them. And it hurts.
But if you think about it, you do that too. I know I sometimes ditch a friend for another, choose someone over another, talk to someone more than another. It's inevitable. And I'm hurting someone else too, in return.
I feel as if I've ruined every 'first choice' chance I've had. I've been too busy trying to make myself someone else's first choice, that I forget to realise that I may be making someone else a second choice. And before I know it, I've become their second choice too.
It's like a cycle. I feel hurt that I'm someone's second choice. But at the same time someone feels hurt that they're my second choice. And before I know it, I feel hurt that I'm their second choice. Why do I always want what I can't have?
And on those days where I'm tired and out of it, where I can't participate in jokes, where I just act dull... that's when I'm always a second choice, because nobody wants to hang out with the boring girl. And sometimes I feel like that's all the time...
You have no idea how much it can hurt when someone says hi to your friend but not you. Or when they don't wave or smile back to you. Or when you call them, and they're too busy talking to acknowledge you. And sometimes, when you say something like "Said hey to her but not me?", they say "Gosh, M. I wasn't talking to you." And I know they're joking, but it still hurts.
So try to acknowledge everyone. Try to choose everyone. Try not to ditch one for another. Because being the second choice feels really shitty.