Quite agree with ajanela and vampirequeen, sounds like she may have a bit of post natal depression or mood disorder or something, in which case doctor's advice would be to "check out" any distressing/intrusive thoughts with people, just like she has done.
Seems like there are 2 camps on this thread, some people understand and are sympathetic while others find it peculiar or "attention seeking".
For what it's worth I would think a bit of gentle tolerance would be kind, even if you don't want to be involved any more. People don't choose to be ill and after all it is 1 in 4 of us at any time struggling with mental illnesses, could happen to any of us.
Hope you get your own problems sorted soon, must be very hard.