Frustrated!

I need to vent to my glow community. Now, this may sound strange, and some of you may not agree with this but to start this off, my fiancé is 20 years older that me.. that’s not strange, wait for it... he has a daughter that’s 27... 3 years older than me.. STRANGE AND WEIRD! Haha ok. Back to business. Well, his daughter is getting married as well. It was till a couple weeks ago, she announced that she wanted to get married at a courthouse(so it’s official in the states) go on a 8 day cruise and have a formal ceremony, and if that wasn’t enough.. have a reception after!! My fiancé and I live in Nashville and she’s in Florida. This cruise is for November and we are looking at 2019 per person. I’ve told my fiancé with our wedding in January and just bills, that’s not possible, we can’t afford the cruise but will go for the courthouse when shes actually exchanging vows. I told him a line needs to be crossed and he refuses because it’s his daughter(which I understand). However, when it comes to finances there still needs to be a line drawn. He refuses to admit this is crazy and too much and not complaining about money in regards to it, but with our wedding and when I send him vendor quotes, he says it’s too much money and doesn’t know how he can afford it.

Help ladies please! I don’t know what to say, what to do.. I feel like my opinion doesn’t matter.