After 20 years of marriage boys I'll give it to you strait up.
The first 15 years of marriage are tough, raising kids, money gets tight, no free time, you want this and she wants that! The trick here is to compromise, find common ground and activities you both like, and this is the kicker....find things you like to do TOGETHER and spend money on those activities. You will like your ideas more than hers and visa versa, but over time you will learn and enjoy new things together.
After 15 years, your kids start moving on. Driving cars, time with their friends, jobs... and off to college. Things get quiet. Then one day you look at this woman you married 20 years ago....and you realize.... it's just you....and her.
If you were wise and spent your money on things you both enjoy during the first 15 years, you now find yourself with a hunting and fishing partner to replace your kids who are off in college. She didn't like hunting/fishing when we met but she loves it now. I wasn't a big fan of gardening 20 years ago either...but we enjoy doing that together now too. Our list of activities is long, but we still have our individual things too.
Learn to like the things she likes. Get her involved in what you like to do. You married because you like spending time together, don't make hunting and fishing a guys only thing.
On slow days....you can do a lot of things in a deer stand or boat with your wife....other than look for deer and fish.