Here's a different take on the subject. I'm the wife/GF and its my boat. My BF has been operating boats his whole life, all outboards. While I have tons of passion for boats, I had very little experience and what I had was very old, back in the early 80's.
But my hobbies are water based, rowing, kayaking, swimming. But I always wanted my own powerboat! So two years ago, my best bud wanted a bigger boat and sold me his, a little Sunbird.
First time out on it on my own I promptly got the shifter stuck in between gears! i was so bummed I couldn't sleep until it was fixed. I learned everything I could about the shifter, the cable, the gears. I had no docking experience. So I learned how to dock, put the boat in and out of the water and actually have gotten pretty good at it. ( I had to load the boat one time when it was really rough and got it perfect on the second try and a group of people started clapping and cheering!)
My newest thing is learning how to properly trim the boat for choppy water. Its a small boat and it doesn't like chop.
And as anyone on the machanical forums here can see, I am learning how to work on it. This weeks task is replacing head gaskets and impeller related things. Oh joy.
Replacing the gauges and installing a snapon cover are next on the list.
I have much more of a passion for it than my BF. I'm miserable if the boat isn't running. His goal is to keep me happy, so he works on the boat, even tho he'd rather be fishing or working on his Firebird ( car.)
So my SO does enjoy the boat and can do anything on it, but he doesn't love it like I do.