Is the Yandere Childhood Sweetheart a Boy?

(Changed marriage + yandere + sister type + mother type + multiple girls or boys + slight weight) I, Xia An, have been the prey of two "devils" since I was a child. One of my childhood sweethearts, Su Wanqing, was the school beauty and the perfect young lady. She was cold and noble, but she only smiled at me and was gentle and considerate. The only problem is - she has serious yandere tendencies. Any girl who comes close to me will be "accidentally" injured. My social media is monitored in real time, and there are at least three hidden cameras in my room. She smiled and said, "An'an, everything about you is mine." I endured it for more than ten years, until the day I graduated, I decided to muster up the courage to confess: "Actually, I like men." Silence. She smiled suddenly, a sickly, crazy smile. "What a coincidence!" Wait, what's going on? ? ? And the other one is a master as gentle as water, who was actually transformed into a white snake. He was saved by me when he was a child, and he regards me as a love disaster...