Why Does The Fill-In Boyfriend Break Up? Spoilers

The blindfold came off. I blinked. A chandelier. A fireplace. A mansion i had never seen. And a man i had known my whole life — standing with his back to me, a half-empty bottle on the table beside him. Caleb. "Please." My voice cracked. "I don't know what's happening. I think there's been a mistake—" He turned slowly. The grief on his face curdled into something else entirely. "You put her in that chair," he said. Low. Shaking. "You did that." "I didn't—" He crossed the room in four strides. His hand closed in my hair and drove me to my knees before i could breathe. "You're not going home," Caleb Wren said quietly. "Your sister's wedding is in four days. You look exactly like her." His eyes moved over me, cold and final. "You're going to take her place. Consider it what you owe."

My boyfriend's "best female friend" was angry again. Why? Because for our five-year anniversary, he got a gift just for me—and forgot about hers. Simone Baker threw a complete fit, sobbing and making a huge scene. Scott Tanner immediately blocked me and removed me on Instagram, then changed our matching couple profile pictures. "Girls can be so dramatic," he said. "Once I've calmed her down, we'll switch them back." I reminded him, "That makes a hundred times now." He just smiled and gave me a quick kiss. "I know. I'll make it fast this time." That night, Simone posted a status update: [Your effort was acceptable. You get three days of freedom.] Almost immediately, Scott unblocked me. [Okay, babe. We can put our couple pictures back now.] But then a male account—using my half of the matching photo—sent him a friend request, followed by a single question mark. [Since when are couple photos a group project?]

I go to my boyfriend after hearing about him flirting with his college senior. On the way there, I get into an accident and suffer from temporary memory loss after a head injury. He hurries to the hospital but points at his stoic dormmate and claims he's my boyfriend instead. He wants to use this to get rid of me. I'm unaware of this, so I hold the handsome dormmate's hand and look at him with bright eyes. "So, you're my boyfriend." Later, I regain my memory but still want to be with the handsome dormmate. I want to sever ties with my boyfriend, but he breaks down.

After five years of dating, my girlfriend, Rachel Meyers, cancels our wedding 52 times. The first time, her intern, Ethan Cole, messes up a form at the law firm where she works. She rushes back to fix it, leaving me stranded on the beach for the entire day. The second time, during the wedding ceremony, she hears that Ethan is being bullied by another attorney. She abandons everything to help him, leaving me to become the laughingstock of our guests. After that, no matter when we hold the wedding, Ethan always seems to have some kind of emergency that demands her attention. Eventually, I grow numb and decide to break up with her. But on the day I move out of Westerbay, Rachel loses her mind trying to find me.

I'm the most hot-tempered stand-in by Emily Kelley's side. When she smiled at another guy, I smashed her million-dollar car. When she had dinner with a man, I set her multi-million-dollar mansion on fire. Everyone thought Emily would kick me out in anger, but instead, she fell even more in love with me. It turned out my arrogant, jealous attitude was exactly like the lost love she couldn't forget. I spent eight years with her, turning a spoiled heiress into a devoted girlfriend who texts back instantly and apologizes at the first sign of trouble. We were about to get married. My friends envied how well I had trained her and thought we would live happily ever after. But on the day we were supposed to get our license, I waited for her at the city hall for hours—only to find out she had married her first love instead. When I arrived at the wedding, Emily looked at me with complicated eyes and apologized. "You should know you were just a stand-in. I never loved you. Now that my one true love is back, it's time for you to go." As I walked toward the altar, the guests backed away in fear, worried I might lose control. I looked at my system screen, which showed they had already gotten married, and calmly handed her the bouquet. "Got it. Wish you happiness. Have a good life." No one knew that all my jealous tantrums and drama were just me completing missions assigned by the system. Now that she and her first love are finally married, my mission is complete. I can finally go home. This game is over.

After a falling out with my long-distance boyfriend, I decide to secretly fly home to patch things up with him. Unexpectedly, I catch him fooling around at home with his secretary. "Do you need to be so mad? I only got someone to act as your stand-in. Ultimately, you're still the one I love." I listen to his preposterous lies and hide my stomach cancer diagnosis behind my back. I say, "It's not a bad idea to gather more of these fakes. You won't be too upset when I'm dead." But after I die, he loses his mind when he looks at his secretary's face.