As a foal, Fluttershy had trouble controlling her temper. Through years of hard work and the support from her friends and family she was able to overcome her inner turmoil and control her anger. She was even able to become the element of kindness.

When an argument with Pinkie Pie causes her to lose control and push her friend down a staircase, she believes she may no longer be worthy of holding her element of harmony. But why is Pinkie so eager to forgive her?