You can't cheer me up

-„You can always rely on me“... does that sentence mean anything nowadays?
-Why do you ask that?
-I don't know. Really. I was just wondering.
-What's wrong with you?
-Wrong? What should be wrong?
-You act a little weird...
-Oh that.
-Is it because...
-Yes.
-Oh Sora, are you sure you are?
-No, I'm not sure. I wish I was. At least I would know if my heart's broken then. Or if I'm just haming it up again.
-I understand you are confused. Really. But you may not give up now. One day you'll understand.
-What, If it's already too late then? Isn't it like this everytime? You first understand when your chance is over. When you're already broken. And then you feel like a puzzle – torned apart – And then your friends come with „you can always rely on me“ and in the end you can't. You can't explain what's wrong with you because you don't know it yourself. And they can't tell you everything will be fine because you already know it won't.
-Who said that?
-Nobody. I know it.
-Ah? And how do you?
-Don't you see it? I'm a shard cluster. My feelings hurt me, even if I try not to cut on the edges. And I hurt others. I don't want this anymore... but...
-You don't know how to stop it.
-Yes...