["fun" is not exactly the operative term to describe riding more than an hour each way in the cold, dark, wet, and wind while heavy traffic blows by you at 65 mph for months on end. On the other hand, the most important time to be out there is when you don't want to be.

All good things must come to pass as the saying goes. I'd say you're quite fortunate not to have been hit by a car on such roads for all that time. Count your blessings on that and I'm sure you'll find yourself a new route that works for you at some point.