Part 2The Ex Who Went Viral

Dean’s parents and mine were inseparable, practically family.

Dean and I, we’d shared a crib. We were the literal definition of childhood sweethearts.

Growing up, Dean was quiet, reserved, and almost painfully awkward.

Mr. and Mrs. Reed often sighed, calling him their little 'stone statue.'

In school, his honest, submissive nature made him an easy target for bullies.

Luckily, I was the resident wild child—a terror in pigtails.

If Dean got cornered, I’d rally my sisterhood and we’d go to war.

The kids we beat up would stick out their chins and shout:

“Look at him! A boy who needs a girl to protect him! Shame!”

I’d immediately grab a rock and hurl it at them.

“Say that again, and I’ll pull down your shorts and parade you through the quad!”

I was always furious on his behalf, but Dean would just tug on my sleeve and press a piece of candy into my palm.

I’d chew the candy, exasperated. “Dean, don’t be such a doormat. Your parents are worried sick. Can you try to be a man?”

He’d just offer a gentle smile and ask if I had enough candy. I’d grab his ear and twist it in pure frustration.

It’s fair to say that I protected Dean through our entire childhood and adolescence.

He was always that sweet, mild-mannered boy. No matter how many times I drilled him on standing up for himself, he’d only smile and say:

“I’ll just focus on being your strongest backup, Sierra.”

Eventually, I gave up trying to change him. I even stepped in to defend him when Mr. and Mrs. Reed would scold him.

It was half-serious, half-teasing, when Dean’s parents would say:

“Oh, Dean. What on earth will you do without Sierra?”

Dean would look at me with earnest, serious eyes. “Do we have to be apart? I want to be with Sierra forever.”

I’d just laugh, flexing my small arm.

“Don’t worry, Mr. and Mrs. Reed! I’ll take care of Dean! As long as I have a meal, he’ll have the best seat at the table!”

It was just child talk, but Dean never forgot those words.

The day he finally confessed, he clung to me, his voice thick with emotion.

“Sierra, you promised you’d take care of me. Don’t ever leave me, okay?”

“Be with me, please?”

I thought then that Dean was the most hopelessly stubborn boy I knew. He was fiercely devoted, stuck to his convictions, and once he made a decision, he followed it to the end.

That’s how he was when he confessed to me.

And that’s how he was the day I caught him, fiercely defending Tatum.

“You’re kidding me?!” Harper shrieked. She pointed at the phone. “So, the Tatum you mentioned... she’s the… the one who posted the thread?”

“Yes,” I said simply.

“The woman who posted the thread.”

Harper buried her face in her hands, tugging at her hair. “Why? You had two decades of history! Does a childhood bond really lose to a sudden, dazzling arrival?”

I didn’t have an answer for that then, and I don’t really have one now.

Looking back, the root cause of our implosion wasn't even about love.

It was about trust.

How darkly ironic. Two people who had lived in each other’s shadows since birth, closer than siblings, ended up tearing each other apart over a fundamental lack of faith.

Dean and Tatum’s meeting was completely ordinary. They were in the same university class, grouped together for a project.

I first met her when Dean came to deliver me my first pumpkin spice latte of the season.

I was ecstatic when I walked downstairs, but the first thing I saw was Tatum’s arm slung casually over Dean’s shoulder, their heads close together.

When she saw me, Tatum whistled and called out in a loud, carefree voice:

“Hey, sis-in-law!”

My gut clenched. I saw a flash of sharp, competitive light in her eyes—the exact kind I’d seen a thousand times in the girls who’d tried to compete with me for Dean’s attention growing up.

I realized instantly that she saw me as a rival.

I warned Dean about her—repeatedly. I told him Tatum wasn’t as innocent as she seemed. I even said she was clearly flirting with him.

But Dean would simply maintain his gentle smile and reassure me:

“Sierra, you’re overthinking this. Tatum has high standards. She would never be interested in me.”

His complete dismissal of my warning. The slight, almost imperceptible leap in his voice when he mentioned her name. And the hint of genuine disappointment in that phrase, “She would never be interested in me.”

Every detail made my skin crawl.

Our fights began, escalating quickly. But this time, Dean—the one who always came back tearfully begging for reconciliation—chose silence. He chose the cold war.