I’m Mia. Twenty years old. And for the last ten years, I’ve believed my mother destroyed our family.

My dad, Mark, told me she cheated. He met Lena a year later, and they built a perfect life.

I have two half-siblings now. I barely remember my mom.

The divorce was messy. Dad got full custody. Mom moved away. I was told she was unstable, that she didn’t want me. I accepted it.

She sent birthday cards for a few years. Dad threw them away. I found one once, hidden in his desk.

It said, “I love you, Mia. I’m so sorry.” I didn’t understand then.

The photo was from a vacation. Lena and Dad, arms around each other, grinning. The caption: “15 years together and still going strong!”

I almost scrolled past. But the date was 2010. My parents divorced in 2013. That meant they’d been together since 2008. I was six then.

I started digging. I went back further. A post from 2011: a blurry photo of Dad and Lena at a party. A friend commented, “You two were MEANT TO BE.” My heart pounded.

I checked my dad’s old Facebook. There was a photo of him and Mom at my sixth birthday party in 2008.

Mom looked tired, but happy. In the background, barely visible, was a woman with red hair. Lena’s red hair.

I zoomed in. It was her.

At my birthday party. While my parents were still married.

I remembered something. When I was seven, Mom had screamed at Dad about a woman named Lena. He told me she was just a friend. I believed him.

Then I opened a folder on the family computer labeled “Taxes 2010.” Inside was a receipt for a hotel room, dated the week of my seventh birthday. The name on the reservation was MARK AND LENA.

I found an old email chain in Dad’s inbox. Emails from Lena, dated 2007. “Can’t wait to see you tonight.” “TELL CLAIRE YOU’RE WORKING LATE.” I read them all. My hands were shaking.

THE AFFAIR STARTED WHEN I WAS FIVE. My knees buckled.

Everything I believed was a lie. My mother wasn’t the cheater. She was the one who was betrayed. And I had cut her out of my life because of my father’s lies.

I called my dad. When he answered, I said, “I know about Lena. The affair. Everything.” There was a long silence. Then he said, “Mia, I need to tell you something.”

I waited. His voice broke. “Your mother didn’t just leave. She…” He stopped.

I heard him take a shaky breath. “SIT DOWN. There’s something else you don’t know.”

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