After Three Years of Secret Love with My Best Friend's Uncle, I Don't Love Him Anymore

My best friend's uncle and I have been secretly in love for three years, but on the day of my best friend's birthday, I found out that my boyfriend was engaged to someone else. My boyfriend explained to me that they were just in a business relationship and not in love. I was so frustrated that I decided to resign and leave. After realizing it, my boyfriend started chasing my wife like crazy, but I already loved someone else.