Disinterested Parents

Hi everyone, I’m going to try to keep this short. I’m an only child and my parents knew I was going to get engaged for a year prior to the engagement. I’ve been happily (sort of) engaged since March of this year but haven’t done a single bit of wedding planning yet because my parents have since become disinterested in the wedding after the excitement of getting engaged fizzled. They became even more disinterested when my fiancé and I told them we wanted to do a cruise wedding.

My fiancé and I love cruises, he took me on my first one and I actually got engaged on it. So naturally we’d like to get married on a Royal Caribbean ship in the Bahamas. We spoke to representatives ourselves to get a complete price breakdown of every little detail and a breakdown of how the days would go on the cruise. For less than 40K we can have our dream wedding under budget for three nights of fun. My wedding can be an experience, not just one night and it’s over. We presented all the information my parents would need and they became so upset, they refuse to talk to us about the wedding now. My mother has been not communicative to me and neither my father or mother will answer my phone calls. They are paying for the wedding so I value their opinion, but this is what I want. They said they would come around to the idea of it, but the reps for the cruise line said they’re already booking for 2021, which means I’ll be engaged for even longer than I wanted now. How do I deal with disinterested parents? We might secretly elope on our next cruise we have coming up. I’m hurt that my mother isn’t making this a fun experience for me, considering I’m her only daughter and child in general. Their lack of concern and efficiency for a wedding is worrying me.