We've been friends for over 20 years, since university where we flat shared together. went travelling, kept in touch over the years
She never wanted children, bit since I have had mine (two) in my twenties has been funny about it, even though I have never gone on about them, expected her to be involved...
for example she looked disgusted at me breastfeeding, and when my toddler came up to her said 'do you think i like you or something' (not in a nasty way but it still sort of hurt)
over the years I have done my best to meet up without them but once had to bring my son along to a Thai restaurant where he was quiet and didn't interrupt, but she sulked about that.
Recently, she said to me, what are their names again? and I felt kind of hurt again. I don't feel i can share anything about my children which are a huge part of my life for fear of upsetting her.
I could understand it more, if she couldn't have children and that was the reason behind her behaviour but it isn't the case.