Am I overreacting? Guest declined a week before wedding after already RSVP:ing

The wedding was last weekend, and it was absolutely perfect. However, a week before my aunt, who had already RSVP:d that she’d attend, called me to say she couldn’t come because of a birthday party.

We’re pretty close in age and I’m closer to her than any of my cousins, and I was really counting on her being there. She didn’t explain any further than saying that she’s having a crisis and needs to be at this party. She obviously doesn’t owe me an explanation either way. But I can’t help but feel incredibly hurt, even now.

She offered to pay for her food & drink since it was obviously too late to get the money back, but I declined. I was just really taken in the moment and it felt wrong to suddenly demand $170 from her since she’s obviously going through some stuff right now.

She texted after the wedding with a bunch of heart emojis saying that she wants to make me and my wife dinner to celebrate, but I can’t bring myself to respond. We already celebrated, she was invited, and it was a once in a lifetime thing for us. She chose not to attend, and let us know just a week in advance. She even told me she’d been thinking about it for a week before that! She could have just let us know then.

So. Am I overreacting? She claims that she wants us to have a better/closer relationship, but I don’t think I can do that after this. At least not for a while. I don’t want to be unfair to someone going through a crisis, but at the same time this is literally the first time I’ve invited my extended family to a big event and they got their save the date last summer.

Edit: posted an update [here](https://www.reddit.com/r/weddingdrama/s/gukd2XMYDi)