The Dark Secret of Love
*Rustle*
Cadance felt herself being forced down as the bag over her head was lifted.
How did it happen? One minute she was feeling unusually tired after a couple of drinks after a meeting with a Zebrafican ambassador. Now?
Now she was in a cave.And surrounded by what could come close to called “bug ponies” Changelings...
“Now, now, now...I know what you thinking or rather I know what you are feeling, but I've got something that Auntie Tia has been hiding from you.” a familiar two toned sassy voice echoed from the surrounding walls.
Chrysalis...the Changeling Queen?!! What does she want!!!?? Cadance wanted to scream those exact words but she somehow couldn't. Something was gagging her, no that didn't quite fit the bill.
Chrysalis slowly came into view, and Cadance slowly realized her body itself wasn't letting herself scream. The Changeling Queen smirked a little capable of feeling those emotions. But...this was not chit chat. This was a serious matter for Chrysalis for reasons unknown to all except the Changeling Queen.
“So you will have to forgive me about having to kidnap you again, but I don't think I could simply walk into the Chrystal Empire...well undisguised at the very least.”
“What do you want...”
“I suppose this is what I get for gate crashing a wedding that I was never invited to...” Chrysalis droned on before Cadance stomped her hoofs down in frustration.
“WHAT DO YOU WANT!!!??? BASTAIRD!!!!” This last bit got Chrysalis's undivided attention. “My my my Mi Amorie...to curse at me with my own language...what friends are we? To be at each others throats.”
“You hurt Shining, you hurt Twilight, you hurt...” Cadance was sobbing and furious, and choking on the last word.
Chrysalis took a deep breath.
“Cadance tell me how far did you get on your studies with your powers.” Cadance looked at the Changeling Queen. “Why would you...”
“Answer me damn it...you think I disrupted a sacrament like that for my health! Amadán!! Amadán!!!”Chrysalis was the one crying now.
Cadance paused...then...
“I found that I'm a lot stronger when I'm surrounded with those I want to protect.” Chrysalis sighed that didn't tell her anything so she decided to ask the question upfront. “Have you found the inverse to your magic yet.”
The inverse was the reverse of a branch of magic. Dark and Light are inverses. So dark magic and light magic are inverses of ones magic.
Cadance thought for a moment. “I don't think so.”
“I have,” Chrysalis sighed “It's mine.”
Cadance paused and thought for a moment before the revelation sunk in. In order to use a power that is inverse to the magic that the user uses naturally one only needs shun the power that comes naturally to that user. For example if one wants to use dark magic, one only needs to succumb to the darkness within ones heart. So according to Chrysalis if one needed to use Changeling magic they would need to shun the magic of love. But Cadance was the Alicorn of love.
“But it won't happen because...”
Chrysalis hissed,“Don't fool yourself, if that stallion should ever betray you now that you so blatantly proclaimed your love for him...if he breaks your heart...” Chrysalis wiped away a tear. “He will be forced to deal with two changeling queens.”
Cadance gave Chrysalis an angry glare, her actions at Canterlot made sense now but still. "Do you REALLY THINK TELLING ME THIS MAKES ANYTHING YOU DID THAT DAY RIGHT!!!!????"
"No."
"NO?!"
"No...why do you think I was trying to apologize earlier?"Cadance shrugged, she had no idea.
Chrysalis sighed, "You see as much a you may have forgotten our little promise, I never have."
A memory flashed through Cadance's mind.
"I dunno my mom says gathering love for our hive is a pretty big issue."
"I don't think it has to be."
"Why?"
"Because as long as I'm around there will be plenty of love to go around"
"Geeze, well I guess I'll just have to protect you as much as I can."
"I remember..."Chrysalis breath stopped for an instant ans then Cadance then spoke.
"Why...WHY DID YOU CHANGE??!!"
"I never did...but I've seen stallions break the hearts of mares before...It's just to commonplace for me to think..."
"I've know Shining for years!!"
"And that has never stopped similar stallions from cheating before." Chrysalis shuddered as she spoke. "Except if you heart was broken by this stallion in particular, you would be so desperate for love that you would consume it by force."
"I would never doubt Shining."
"I'm not saying you would doubt your mate, I'm asking if you trust him not to doubt you."Chrysalis then recomposed herself saying, "If you both were in love so much...then why did he never tell your sister-in-law, the closest thing you have to family on Equis, that he and you, were getting married? I for one find that suspicious almost like he was trying to hide a secret of his own from his own closest secret keeper."
"He got caught up in the preparations it must of slipped his mind."
"That mare didn't even know you were dating."
"She was in Ponyville at the time she was out of the loop."
"And if he could make the time for his own family...then did you really think that my spell would be less effective." Cadance froze...What was Chrysalis getting at?
"My spell works by drawing on somepony's desire and uses that to control him."
"But..."
Chrysalis held up a hoof. "It merely use one's desire as a catalysis for the spell much like you use one's love in a similar fashion." Chrysalis face then hardened.
"It worked to easily, even in my true form it was just to damn easy."
Cadance grew very cold inside. "If he can succumb to desire this easily then he can and will break your heart."
"No..No he won't."
Cadance woke with a start, she was next to Shining, in their bed, together. No, it was just a dream.
"Oh really...beag amháin?"
Author's Note
Okay my first fic. It's a one shot but I may try to expand if it's popular enough.
Like I said some attempt at Irish Gaelic using google translate. Thought it would work if Chryssie was Celtic. 
Got the Idea at random. And that's about it.