Why is Elisa Martinez evil?

This will be my last rant, before I be mature.

What had happened?

 * 1) We went to get bundt cakes after going to California Pizza Kitchen.
 * 2) Elisa thought that I had put her leftover pizza in the wrong way.
 * 3) I punched myself in the face, believing that it was my fault that Elisa scolded me.
 * 4) For the rest of the outing, Elisa called me immature, which ruined my sanity.
 * 5) I had to contact dad from one of the merchandises at T-Mobile.
 * 6) She still called me immature.
 * 7) Dad believed that it wasn't my fault [entirely] that I acted immature, and that Elisa pushed my buttons, ruining my sanity and the perfect afternoon.

Moral
Don't let that cocksucking bitch, known as your sister, bother you emotionally and mentally.