Gran is pretty hard to get to know. Just look at me. It took twenty years for me to build a semblance of a relationship with her.
That's why I'm not surprised to hear that there's some friction between her and her new in-laws, the Squirrel family. While she and her husband seem very much in love, his relations aren't bothering to conceal their displeasure.
My suspicion is that they're afraid she'll take his money. However, when Mr. Squirrel went to prison he gave Gran power of attorney to manage his finances, and she adroitly steered them through last year's financial meltdown and handed them back when he was released.
On the other hand, it's illuminating that he didn't chose any member of his own family for the task. He apparently is less than impressed with their business acumen, or at least with their ability to work together.
At any rate, what has united the younger generation of Squirrels is their loathing of Gran. Of course, her basic cantankerous nature doesn't help. She's now finding out what it's like to be presumed guilty until proven innocent!