The End Of The Rainbow

Pinkie Pie was depressed. Not because of a distinct lack of customers, or the a Cakes moving, but because of Rainbow Dash. She had done nothing wrong, and no reasons would ever compel pinkie to hate RD. No, the reason was that Dash had just discovered she had a serious issue, a choice to make and either choice she made, a sacrifice would be made.

It had to happen eventually, right?