I think Brit is in the middle of a bona-fide nervous breakdown. She needs to check in to a mental hospital for a while. She may have had a psychotic break or something. Clearly she's not fit to be a mother to those boys right now. Even if it is just PPD, it's a bad case and girlfriend needs professional help. Ostracizing her mother won't help.

"Outside of a dog, a book is man's best friend. Inside of a dog, it's too dark to read." -Groucho Marx