Homer has a health care plan through his job at the Springfield nuclear plant. But Mr. Burns is always trying to cut it back as much as possible, and Homer is always getting injured. In fact, barely a week goes by that Homer isn't back in the hospital, with Dr. Hibbert attending.
Sometimesthe medical bills pile up. Homer and Marge can't take out another mortgage on the house. They have to keep the kids in school and fed. So Marge does what she always does: she bails Homer out.
She says she's doing it for her husband and family. But she does it with such frequency and such enthusiasm, one might think she's also doing it for herself.