I have three sisters. Sister 1 is 35. She’s the main one here so I refer to her as Catherine. My other sisters 2 and 3 as ages 27 and 29. I am 34. Our dad died when I was 17. As I was his only son and older the younger two I took on a sort of fatherly roll for them in certain situations. One of them being my sisters weddings. When my sister 2 and 3 got married I walked them both down the aisle and gave them away. I also paid for their weddings.
Meanwhile Catherine has always said her entire life that she never wanted to get married and was anti-marriage so it never came up. Until last month when my sister announced that she is getting married. She and her fiancé have apparently already picked a wedding date (they want a winter wedding on the same day they first started dating). They have also already booked their venue and caterers. She is expecting me to reimburse her the costs.
The thing is my wife and I are expecting twins. We hadn’t wanted to tell our families until far later in the pregnancy because it is high risk. My wife and I also live in the states. Given that she would be heavily pregnant by the date of the wedding I do not want to be halfway across the word in a different country from her. Also due to the many upcoming expense we are expecting I will also not be able to afford to pay for Catherine’s wedding.
For those above reasons my wife and I agreed it would be okay to let Catherine in on secret about the pregnancy so she would know that I wouldn’t be able to be there or contribute much to the costs.
Catherine did not take it well at all. She says I am being unfair and playing favorites like always ( I think she says that because I looked after them more because they were younger). She says I should have planned better by telling everyone sooner about the pregnancy and that I should have had money set aside for her wedding because they can’t afford the wedding themselves and she probably won’t be able to get her deposits back. She also says that since my wife's due date isn't for another month after the wedding that it shouldn't even be an issue. She is now saying she will cut me off if I don’t treat her equally as our other sisters and come to the wedding as well as pay for it.
AIBU?