wordy title.
A very good friend of 12 years had her baby a year ago. The baby was not exactly planned, but friend and her DH weren't using contraception as she had previously been told she was unlikely to get pregnant due to health issues. Friend had a difficult pregnancy due to health problems but baby was born fine.
When baby was born friend was very detached from her preferring others to feed, change, deal with baby etc. From the start friend made lots of negative comments about baby how they can't do x,y or z (eg go out, go away for weekends) because of being tied down with baby. Baby was in own room on a different floor from 8 weeks old and sleeps through every night so its not from tiredness IYSWIM?
Friend didn't enjoy maternity leave at all and unfortunately I have now moved away (2.5 hours drive) so I can't see her as often as I would like it's about once a month. Every time we do see her she says she is unhappy and can't wait to go back to work (next month). My friend's mum and dad have baby every Saturday morning, and baby sleeps over every Sunday night and her and her DH also have a week's holiday booked on their own next month. They have also had a few weekends away. I am not judging this at all am just illustrating that my friend does have a lot of time off so it's not like she;s not getting a break.
I have talked to my friend and gently suggested seeing drs or health visitor etc to have a chat about how she is feeling. Last time I raised it she agreed that she needs to do something as she feels very detached for the baby, doesn't miss her when she's not with her. But her DH talked her out of it by saying my friend should wait to see how she is when she returns to work part-time next month. 
I am struggling with this as I just feel so sad for my friend- she is not happy at all, so different from the happy and bubbly person she used to be. And so sad for the gorgeous little girl that her mum doesn't get any joy from being with her. I can't stop thinking about it to be honest, I feel helpless though, what can I do other than trying to get her to see dr? But then, if child is well cared for physically, and has doting grandparents, does it really matter if her mum is detached from her? It's completely different from my own experience of motherhood but does that make it wrong?