According to Jim Recap: Good Grief
Cheryl finds out that her uncle died, and Jim has a really hard time trying to figure out just why she's so upset about it. After all, she wasn't nearly as upset when her dad died. Then it occurs to him - she's trying to milk it. She's trying to put on over on him, and get some free sympathy out of this! Dana was way closer to their uncle and she's been over it for weeks. He'll see about this, and get out of it in no time.
