Taking care of her sick husband wasn't too much trouble. Aslan wasn't as fussy as her. If Rosie was the one who got sick, she would trouble a lot of people. She usually wanted to eat this and that, but in the end, she didn't eat any of them. She could only cry because her body felt uncomfortable.
Aslan just slept without asking anything. Oh, actually there was one thing the man asked her. Rosie must sleep with him. When she was going to make dinner for him, Aslan held her clothes so tightly in his sleep that Rosie was confused about how to get the man's hand off her shirt.
Besides that, Aslan's hot body sometimes made Rosie feel hot too, and when she wanted to leave, the man would hug her tighter, forbidding her to go anywhere.