My Sister Stole My Ex And Told Me To Shut My Legs — So I Destroyed Her Secret Date.

Part 1
I trusted my sister more than anyone else in our house.
We shared a bathroom, clothes, and practically our entire lives.
When Dan broke up with me two months ago, my entire world collapsed.
He just decided he wasn’t interested anymore and walked away.
No warning, no real closure.
The next four weeks were spent crying on Heather’s bedroom floor.
My sister sat there rubbing my back.
Tissues were handed to me in endless supply.
Her soft voice promised I deserved so much better than a guy who would just abandon me.
Believing she had my back felt completely natural.
Our bond was supposed to be a safe space.
Then Brenda called me last night.
The line stayed quiet while my friend cleared her throat a few times.
A hesitant voice asked if I was sitting down.
My grip tightened around the phone.
Taking a sharp breath, Brenda admitted she had to give me a heads-up because keeping this secret made her physically sick.
The words fell out in a rush about Heather planning a date with Dan for tonight.
The room spun for a second.
Pressing the phone hard against my ear, I asked for the sentence to be repeated.
Brenda explained Dan had asked Heather out last week.
My sister had accepted immediately.
Hanging up the phone, I marched straight down the hallway.
Pushing Heather’s door open without knocking felt like second nature.
My sister sat at her vanity applying mascara.
Our eyes met in the reflection of her mirror.
Confronting her head-on, I asked if the rumor was true.
Not a single flinch came from her side.
Capping her makeup, Heather turned around.
Crossed arms accompanied her claim that Dan asked her out, and since we broke up two months ago, it should be totally fine.
She called it a casual little hangout.
Nothing serious was supposed to happen.
My hand grabbed the edge of her doorframe.
A painful reminder slipped from my mouth about how she had watched me cry over him just a few nights ago.
Heather rolled her eyes and let out a heavy sigh.
She told me to chill out.
A mocking tone questioned if he was going to get down on one knee and propose tonight.
Leaning back in her chair, a smirk played on her lips.
She admitted to always feeling a little something for him.
Apparently, I was supposed to already know that.
The air left my lungs entirely.
Disbelief colored my voice when asking how she could do this.
Up went her hands in exasperation.
Complaints poured out about not being able to enjoy herself for one night without her older sibling breathing down her neck and ruining it.
I brought up all the nights spent sobbing in this exact room.
The agonizing pain he caused me should have mattered.
Picking up her phone, Heather unlocked the screen.
None of that meant anything to her as long as she got a little action.
Tapping a message out, she declared they were just going to his apartment to watch a movie.
The truth needed to come out about their timeline.
A direct question left my lips regarding whether they were talking while Dan and I were still together.
Did she just hop on him the second he was free?
A small smile touched her phone screen.
A messaging app had been their secret meeting place while we were dating.
She claimed their chats were strictly friendly.
Supposedly, they never talked romantically until we broke up.
Disgust filled my chest.
Calling them both trash felt entirely appropriate.
Heather stood up abruptly.
Her purse got snatched from the bed.
Trash or not, she claimed she at least knew how to keep her mouth shut and let others be happy.
An awful, unrepeatable word was thrown in my direction.
Blocking my number would be her solution until I learned how to be happy for others.
A cold, practiced smile stretched across her face.
She promised to learn to shut her mouth when I learned to shut my legs.
Stumbling backward into the hallway was my only reaction.
Her bedroom door slammed shut in my face.
The click of her lock echoed through the quiet house.
Staring at the white wood felt surreal.
Humming drifted out from the other side.
Downstairs, our parents, Craig and Susan, were in the living room watching television.
They had no idea what was happening up here.
The reality of Dan being on his way to pick up their youngest daughter remained a secret to them.
Outside the window, tires crunched on the gravel driveway.
