Sounds like she was great. Our best trips starting happening once we started taking 2 Jeeps on our trips. My wife is high strung and worries about things and is the best backseat driver in the world. I worry about almost nothing and am very laid back. Our wonderful trips would almost be ruined by arguing about how to drive on the way to and the way back from the destinations. I drive fast, she drives slow, I 100% use adaptive cruise, she hates any cruise control and varies her speed 15 mph. On one of our trips last year, I told her it would be more fun if we both had our own Jeeps, when we got to the destination, and she stated that it would be nice to drive the Jeep she is used to on the trails. We agreed to try two Jeeps. We also agreed on some trip rules. They main things were that I would only drive 5 mph the speed limit and she would keep up and we would stay in radio contact at all times. It was a game changer for us, she earned her first 3 BOHs on that first trip. Trips(we took 8 last year) became so much more fun and relaxing.
Even with fighting when we are in the same Jeep, I couldn't imagine living without her there. I would tell you that I am going to hug her tighter, when she gets home from work today, but she will probably yell at me about something before I do and then I won't...lol...
I sincerely hope you will quickly get to where you have more good hours than bad. Do things for yourself and keep the memories fresh knowing that this is what she would want. If you ever need a friend, I can be that person.