What Happened To Billy'S Sister On Young Sheldon Summarized Briefly?

When I get married to Zachary Lennor, I know that he has a younger, depressed sister who's a huge pain in the ass. On our wedding night, she suddenly barges into our room with the excuse that she's terrified of the dark. That's why she wants Zachary to sleep with her. When I get hospitalized due to my illness and need Zachary to take care of me, his sister insists that he go home to eat all three meals with her every day. Otherwise, she'll go on a hunger strike. Even when Zachary and I are on a date, his sister will call him immediately, claiming that her depression is acting up. If he doesn't go home right away, she will jump off a building without hesitation. Unable to take it anymore, I unleash my anger on Zachary's sister. But Zachary is quick to shield her from my ire. With an icy expression, he tells me, "I only have one sister, whereas I can always get myself another wife. If you can't stomach her presence at all, we'll get a divorce right now." I keep tossing and turning in bed at night, unable to sleep at all. That's when I decide to get out of bed just so I can apologize to Zachary and his sister. As soon as I walk to the doorway, I hear a familiar voice whining from the master suite, where Zachary stays. "Zach, since Samantha got so mad at me today, does this mean she's found out that I'm not your actual sister at all, but your ex-wife?" Zachary pauses momentarily before saying reassuringly, "Even if she does, it's fine. Although I do love her, I've already vowed to stay with you forever the day I married you. "So, even though we're already divorced, I will still keep my word. I won't let you go." At that moment, I finally realize that Zachary's so-called younger sister is just a fake identity. Her depression is also a big fat lie. I'm the only one who's been kept in the dark about everything in this performance. In that case, I'm not going to humor these jerks anymore.

My little sister Willa? Always played the noble princess—even during the freaking apocalypse. She was pregnant and still trying to look like some graceful queen. I told her to end it. Safer that way. She slapped me. "Shut up. How can you be so heartless?" Meanwhile, I skipped meals so she and her rescue-pet gang could eat. When I collapsed from hunger, she snorted. "Drama queen. Think of it as a free weight-loss plan." I dragged her to the base, the safe zone, and nearly died doing it. She snatched the last of my rations. "The baby and I are good. Give the rest away." I died from my injuries—frozen, starving, forgotten. Willa? She got crowned a saint. Even landed the baby daddy—the Deputy Governor—and kicked off her perfect little fairytale. Then I woke up. Back to the moment she asked me to swear I'd protect her and the baby. This time, I laughed in her face. "Die for all I care."

My younger sister, Lila James, had a heart attack. The doctors tried their best, but she died. On the day we buried her, the men she had been involved with showed up. One was an unhinged lawyer, and another one was a powerful heir from Jovaris. Yet another one was a messed-up top celebrity. When they heard that Lila was dead, they lost it. They tried to dig her out and torture her. I blocked their way and begged them, “She’s gone! If you need someone to blame, take it out on me!” That was the moment I became Lila’s stand-in. They tortured me in every way they could think of. They beat me until my skin tore open and forced me to film humiliating videos. I somehow escaped and tried to bring them to justice. The unhinged lawyer threatened to ruin my life! The powerful heir used his influence to shut every door in my face. The messed-up top celebrity leaked the videos and claimed I had seduced him. I became the center of a national scandal, and my reputation was irreparably damaged. My parents even published a statement and cut all ties with me. I went home to confront them. When I reached outside their door, I heard Lila’s voice. She sounded immensely pleased. “Mom, Dad, your plan to fake my death saved me! I can finally get away from those lunatics. “Good thing we had Yara! Otherwise, I would’ve been the one in all these scandals.” I broke down. I rushed into the house. I was ready to drag Lila to hell with me, but my parents killed me first. When I opened my eyes again, I was back on the day Lila had her heart attack.

My mother, Winona Barlowe, who was the medical director at the hospital, decided to let my intern sister, Mia Barlowe, practice her skills by performing a brain tumor surgery on me. I begged my mother to assign another doctor since it was my only chance at survival. She slapped me across the face and cried out, "How did I ever give birth to a selfish girl like you? Mia just started her internship. Can’t you give her the chance to practice?" When I died from the botched surgery, she turned gray overnight.

My sister Iris almost died from anemia. The day she was hospitalized, my whole family started blaming me. I'd been frail since birth, so Mom and Dad had always poured all their attention into me. The new school supplies were mine, the new clothes were mine, and even on the birthdays we shared, the cream and chocolate part of the cake always went to me first. I used to hear Iris crying at night. But whenever I tried to comfort her, she just shoved me away. On my twelfth birthday, I came home from school with a perfect score on my test, beaming as I pushed the door open. Mom and Dad's eyes were red, and they looked at me as if I'd done something terrible. “Why can't you ever be nicer to Iris? We give you everything, and you should be thinking about her too.” “The doctor said her health problems are all because of how she feels.” “You're so spoiled, so selfish.” I lowered my head. They didn't know that I was frail because I'd made a deal to take Iris's death for her. Tomorrow, I was going to be erased.

The morning of my wedding, my own sister locked me in a bathroom stall. The boy I had sponsored out of poverty couldn't bear to see my fiancée standing alone at the altar, so he stepped up and married Lillian Gates in my place. My sister was so moved that she claimed him on the spot as a brother and let him complete the marriage alliance with the Gates family in my name. My fiancée said, "Silas, you healed my legs. I love you. I respect you. But Liam and I have already registered our marriage. From here on, one of you is my husband, and the other is my boyfriend. Things between us can stay the same… alright?" I slapped her across the face. What she did not know was that her legs were never fully healed. In seven days, without my brace, she would be unable to walk again. What she also did not know was that my sister–so certain of her schemes–had never even seen our parents' will. So what made her think the company had been left to her?