Sorta-newlywed here...
DH and I have been married almost 4 years, no kids. We enjoy our time together but spend probably two evenings a week apart, mostly due to his high level of volunteering in our neighborhood organization. He's the kind of guy who needs to be in the mix. I, on the other hand, am way more socially low-key, so I enjoy the time we have together as well as the time I have to myself while he's at meetings. I get to cook, sew, bike, run, whatever...take my time away from "people." I get really worn out on human contact during the school day, so I appreciate the quiet in the evenings.
DH would like more together time, though, I think. We are beginning to participate in running events on the weekends (me moving his way on that) and he is shopping for a new road bike (him moving my way). After I finished a duathlon last month, he expressed interest in giving it a whirl. We're finding more recreational common ground.
What works for one couple will not necessarily work for another, though. No two couples are exactly the same...we don't need to be constantly DOING things together...a lot of the time it's just nice to be home at the same time and around each other.
But ask me again in ten or twenty years and I might have a very different response! Especially if we have kids.
2007 Trek 5000
2009 Jamis Coda
1972 Schwinn Suburban
"I rejoice every time I see a woman ride by on a bike. It gives her a feeling of self-reliance and independence the moment she takes her seat; and away she goes, the picture of untrammelled womanhood."
Susan B. Anthony, 1896