My sister came to my house around my school for the first time, screaming and wailing my name while accusing me of sleeping with her husband because she claims that she saw chats on his phone with a saved contact “sister-in-law”. It was so embarrassing that I didn’t sleep in my house for a while. A few weeks later, she discovered her husband was sleeping with his first wife’s sister and NEVER me! All along my sister has been playing second wife without knowing.