I wonder, does the type of personality have much to do with whether or not the partnership works? Some people naturally seek out other people to be with while others are more comfortable being along. Put a loner in a group dynamics and it can become challenging for everyone involved.
I personally prefer to do things alone. It seems being a loner is a more natural comfortable way for me to be. Yet I think it is a good thing when I do experience being in a group. It challenge my limitations and opens me up to new experiences, but it can also test my patience too.
I think this aspect of my personality might be an important thing for me to keep in mind when I do start seeking out other musicians to play with.

Little Neo