The Cruel Intentions actress was diagnosed with the disease in 2018, while her The Sweetest Thing co-star revealed she was also fighting MS earlier this year. Speaking to Entertainment Tonight, Selma shared that she and Christina lean on each other for support amid their health struggles. "Christina still supports me. She's just a strong one... She's such a nurturer. If you need something she's at your house. There have been things that I had been unglued, and she's like, 'I'm outside. Answer the door.'"