There's a reason we want what we can't have. Why we feel like we can change something or someone by just being in their presence. It's to feel a sense of control; to feel as if we're so powerful in the way we are that we can change someone's mind, or way of being to what we desire.
It's a cruel feeling really. For more often than not, it doesn't turn out they way we once imagined. As much as we desire it, it doesn't always work out that way. But still, we keep trying.
Pushing the limits. Just hoping we hold the power to twist reality.