When there's a girl who doesn't notice you, people will often tell you "Then she's not good enough for you", or "It's her loss", or something along those lines.

Why do people put other people down to try to make you feel better?
If a girl doesn't notice you, that sucks. You really have to move on. Write a story to express how you feel.

If someone loves you, and you don't love them back, it can be quite stressful. Trying to be happy, yourself, but also trying not to break someone else's heart.

When someone's in that position, you have to think about them, as well.