My brother in law (husbands brother) and sister in law have sent an invite for their daughters first birthday on the same day as our sons surgery.
In fairness the day of the party falls on niece’s actually birthday (on a Tuesday) so I can understand wanting to have her party on the actual day of her birthday. However a few weeks ago when we first found out about the date of the surgery my sister in law said they would look at having it on the weekend before.
For context this is a surgery my son has been waiting for, for a while so there wasn’t any flexibility with the dates. Our youngest will only be 7 weeks when the surgery is happening and my mother-in-law was meant to be looking after him but now will be attending the party. We have had to make other child care arrangements. Our youngest is very unsettled in the evenings so brining him without us would not have worked.
The party itself is just at their house (so no venue booking or catering) with close family. So this includes all of their siblings on both sides, the children and both grandparents.
Instead of telling us face to face that they have decided to go ahead with the party on their daughters birthday they just sent an invite in the family group chat knowing full well we can’t attend. We have since gathered that by the time the message was sent the two other siblings in the group chat already knew the party was happening on that date. So effectively they just sent the message to avoid having a conversation about it.
Brother-in-law in particular claims to be close to our eldest but I just feel a bit out by this. I know I might be being unreasonable so would welcome your feedback.