We did this, DH went for 2 years, I got a six month sabbatical from work which I used in the middle of the two years. So I wasn't risking my career in any way. His company paid for flights every 8 weeks or so, or we paid for them so we saw each other regularly but infrequently.
I couldn't work out there - and didn't want to - so I volunteered at a dog shelter, met some nice British ladies there. Had lunches on my own and read books, had lunches and vodkas with new friends, watched trash TV in our apartment, went out with DH and friends on weekends and evenings, went swimming in friends' pools, family visited me. I had a generally nice time, lots of time spent alone though because it's generally mum's with kids or older ladies who aren't working.
I had intended to do a course, learn cookery, etc. But there wasn't anything like that while I was there, which is why I ended up volunteering at the dog shelter.
I wouldn't reccomend two years, as I think you'd be pretty lonely and unfulfilled, dare I say it maybe even resentful. And yes, your DH will love it because he gets to drive a fast car, wear sunglasses every day and be fulfilled in his career.
There's lots of fitness, but it's more classes rather than active outdoor stuff. Plus be prepared to be stared at if you go out on your own in leggings and a sports top.
We had just got married too, but I figured that two years is nothing really, and it was a great foundation for my DH's career.
Maybe think flexibly, you don't have to go for the full two years, just because your DH is.