Colleen Hoover has some sad news to share with everyone... On Monday, the It Ends With Us author revealed she has been battling cancer. She shared a picture of herself in a hospital gown on Instagram Stories, saying she has been undergoing radiation therapy at Texas Oncology. Colleen wrote: "Second to last day of radiation! I wish I could blame my hair and facial expressions on @texas.oncology, but they've been pretty great. Hope you never need them, but highly recommend them.