Sorry to say but this sounds very ridiculous, it clearly shows you are not yet ready to marry. Perhaps this should be a wakeup call for your would-be bride to make better decision

You should already know btc price will start to rise rapidly at some point and should not be enough reason to halt any real life event for.
I hope you can take advantage of the upcoming bull market because some people can get carried away during this period and ended up not doing as they intended.
People refuse to understand that there's life outside bitcoin;
When we begin to give our life a better treat, we will enjoy it to fullest;
The moment you realise that you are free to do what gives your life a better meaning the better;
Someone could actually sell his bitcoin for a vacation;
You owe bitcoin to take care of your problems;
Selling it to solve your problems or for marriage is not a bad idea.
Although I don't know if you intended to hold forever;
Sell some fractions of your bitcoin to buy your needs and love comfortably. You can die tomorrow.