Person A has suffered miscarriages in the past (one this year). They posted on social media about baby loss awareness week and this post was liked by Person B who commented that they were thinking of them.
However, Person B then (within an hour of liking the post!) posted a photo of their baby scan in the group chat which has upset Person A
Points of note are that it was a private scan and not one done for medical reasons so not announcing the pregnancy or anything. I agree with Person A and think it was very insensitive however other family members disagree.
Who is BU?