I, Evelyn Sinclair, pursued Lucas Carter for two years. We dated for three. And only then did I realize that the person he truly loved was his adoptive sister.   That was when I decided to let go.   From changing our matching profile pictures to moving out of the apartment we shared, every step I took was firm and resolute.   Yet even after our engagement was officially called off, he remained convinced that I would come back to him.   Later, on the day my new boyfriend proposed to me in front of everyone, Lucas barged in, eyes red, his voice trembling as he asked, "Do you really not love me anymore?"