I think having a separate space in which to climb is a positive, as well as having slightly different interests too. I think Wolfie and I work because we share some interests and others not at all, giving us the closeness and the space we need to get along just fine. As you say though, you do need to find the right person or people.

I have also learned not to let the minor trivialities bother me as much - there are many of these annoyances and these tend to get magnified when living with someone. It's best to focus on the trivialities they are rather than resenting the other person you are living with.