Long Weekend (2021)

Bart tells Doug the next day, who advises him to eventually get her help just like how he got Bart help when he had a mental breakdown after his mom passed. Bart and Vienna grow even more attached, as they feel comfortable enough to trust each other to have mutual access to a safe deposit box containing the stocks Vienna bought for her mom.
They spend a night together camping in the desert, only for Bart to wake up to Vienna crying by herself a mile or so away. She later reveals that staying in the past for too long messes up one's brain chemistry. As they have an at-home pasta dinner date later on, she starts moaning in pain and finds it hard to breathe. Bart gets scared and heeds Doug's advice by taking her to the hospital for an assessment the next day. As she's about to walk to the doctor's office, Bart has a nosebleed and faints. He wakes up in a hospital bed with bandages on his head and Doug by his side, who explains to him that they found a tumor in his brain yet it was small enough to remove right away.