My BF Gave His True Love the Ring I Made—I Smiled 5 Years Later, He Found Me Begging

After a decade of devotion, he shatters her world by introducing a new fiancée, calling her just a "sister." Heartbroken, she flees across the world to start anew. He follows, revealing a devastating secret: his cruelty was a desperate act to hide a terminal illness. But it's too late, she has found new love and left him to face his regrets alone.