Anyway, Pamela Klaffke sent me a very interesting reply. She said that she agrees that Mason is difficult to deal with, but that she is more interested in writing interesting characters, not characters that are necessarily always likable. She said she's most interested in inner dialogue and that she doesn't think there's a woman out there whose thoughts aren't occasionally nasty. She also said that her relationship with her own mother is very good, and that she thinks her mother was a bit horrified when she read Every Little Thing, because Britt is very different than her mother.
What a wonderfully thorough reply! I definitely think you should write to her if you've read something by her. I'm sure she'd love to hear from you! If you want to learn more about her, check out her website.