Your relationship was comfortable, like an old shoe. It sounded like there was minimal passion in between the sex sessions too, at least from the robotic way you described everything, like you were friends than lovers, maybe I'm wrong here and it's just your shock talking.
People should do as they want, but let's get the downsides out. A motorcycle is for fun, but not good utility in the transport realm except maybe when parking is a factor. I think fatalities are somewhere in the neighborhood of 22-27x more common than a car.