Wambam, my wife started out exactly like yours. No experience of boats and completely against the ideas of staying on boats.
Firstly if you value your marriage , then don't force the issue.
Take it real slow , if she likes foreign places and sun , islands etc , considering chartering , sail in very beign , virtually boring conditions etc. see if that builds her interest , day sail your boat , ensure she has the things she values on board make sure you end with a nice meal etc. you can to show her that boating is enjoyable for her.
Then as her confidence builds , do more and more , but remember little steps
Then you will arrive at a clear understanding of what view your wife will take, she may never take to the boat , in which case you have a clear decision
She made decide she can live on it for short or long periods , but doesn't like sailing or maybe only fair weather
sailing or just day sails
. You will have to adjust your horizons appropriately. I'm a sailing fanatic , but no boat is worth abandoning the love of a good women.
In my case , I realised , my wife will never cross oceans with me , she simply has no interest , but she facilities my sailing other people's boats to do it. She will sail on short trips (. 1-3 days ) in warm weather
and loves " living" on a boat, particularly in warm foreign climates . That's enough for me. I can virtually day sail round the med with her , and do the offshore
hairy armed stuff with my crazy sailing friends. She now often drags me to the boat in summer. !!. But the whole period took close to 10 years. !!
Step by step, then you will appreciate her position, that's it, adjust your horizons accordingly. If she baulks at any stage , suspend the progression , that may be as far as it goes.
What ever you do don't force it, that's a recipe for massive trouble and sometimes heartbreak. You simply may not have someone who finds any appeal on the activity. You will have to live with that.
Note unlike some who believe it , women can't be " bribed " onboard. No amount of washing
machines etc will compensate for a mis match of dreams. It merely delays , and not buy a lot , the problems.