Fluttershy endures one of the most frightening experiences of her life. (It is a testament to the utter terror that can be Fluttershy's life that confronting a full-grown Dragon counts as only "one" of the most terrifying days of her
Fluttershy wakes up one day to find that she is married to Rainbow Dash, she also has a daughter and a son, Fluttershy finds out what happened, and things go back to normal the next day, but she had changed
Fluttershy has been emotionally broken by her ex-coltfirend and her friends want to get her back to normal, by fixing each problem one by one. Rainbow Dash also decides to tell Fluttershy about her feeling for her.
Storms can be both of the physical and mental kinds, both hazardist in their own ways. Rainbow Dash has dealt with the physical kinds, but she is unprepared for the other kind; luckily she has ponies who are willing to help.
The darkest habit one could allow their self to indulge in is the one they know they can not live without, for Rainbow Dash, she should have just learned to free herself from the shackles that bound her from her former lover.