AITA for Refusing to Pay for My Sister’s Destination Wedding?

My (29M) sister (33F) recently announced that she’s having a destination wedding in the Maldives. She’s super excited, and while I’m happy for her, I’m also really stressed about the costs.

She’s expecting everyone in the family to attend, which means not just the cost of airfare, but also the luxury resort she’s chosen. We’re talking thousands of dollars per person. My partner and I are trying to save up for a house, and this trip would completely wipe out our savings.

I told her I couldn’t afford it and that I’d love to celebrate with her another way—maybe at a local reception or a smaller event when they return. She flipped out, saying I was selfish and that family should come first. She said I was ruining her “dream day” by not attending, and now our parents are pressuring me to find a way to go, even if it means putting it on a credit card.

I feel awful because I know this is a big moment for her, but I just can’t justify going into debt for it. Am I the asshole for standing my ground and refusing to go?