"Life update: I have breast cancer. Yesterday I saw all the couples post their Valentines Day celebrations. I felt envious if I'm being honest. Jeff took me to Hawaii and after, we were going to travel the world before planting roots together in NYC finally," Thurston began in the caption of the post, which featured photos of her smiling at the beach. "But instead, my Vday was spent coordinating a place to live as I have to go back to LA for more testing and treatment. I used my morning to figure out insurance for NYC and laws on preexisting conditions. I scheduled appointments for another biopsy, fertility, mental health, surgery, as well as meeting with my team to discuss the overall treatment plan, which will include chemo."