Sometimes.
We have both a Kubota and a John Deere. The Kubota is hers although I have more hours on it than she does and she will not drive the JD.
As for doing things together, yes we do. It is seldom that people see us without us both present. I go to quilt shows with her and have learned some of the terminology and she does the same with stuff I'm interested in. Later this month it will be 47 years.