You're her back-up, her "in the meantime" guy. You're around for when there's nobody better, but as soon as something new comes along she leaves you, then she gets bored of them and comes back to you while she waits for the next one. What a player, get faaaar away from that girl.
To love is to suffer. To avoid suffering, one must not love; but then one suffers from not loving. Therefore, to love is to suffer, not to love is to suffer, to suffer is to suffer. To be happy is to love; to be happy then is to suffer, but suffering makes one unhappy; therefore to be unhappy one must love or love to suffer or suffer from too much happiness. I hope you're getting this down.