I know you all hate these types of threads but I wanted to keep it as unbiased as I could so apologies!
Olivia has a child with Paul, they are not together and Paul has another younger child with his wife Lizzy.
Olivia and Lizzy have always gotten on well enough, not the best of friends but amicable and as the years have gone on, friendly.
Olivia's child has recently told her that he feels since his sister was born that Lizzy and her family don't care about him as much and are always doing things with his sister and not him. This upset Olivia.
Olivia and Paul don't really get on so she decided to send a message to Lizzy directly just asking if they could talk about it. The message was polite but to the point.
Lizzy replied saying that she is sorry he feels that way but her daughter will always be number one to both her and her family (her parents, grandparents, siblings etc..) and that if there are any issues with their child, Olivia should take it up with Paul. She also added that it was none of Olivia's business how much or what Lizzy does with her own daughter and she won't be made to feel like she has to justify it. The message was also polite but obviously Lizzy wasn't happy.
Who's unreasonable?
(Flipped a coin for the vote so don't read anything into that)
YABU - Olivia shouldn't have sent the message in the first place.
YANBU - Lizzy's reply was cruel.