Hide relationships of a specific type from users

I've looked thru the issue queue and couldn't find an existing issue that applies to my question, but if I missed it, I apologize.

I've set up a one-way relationship, user A to user B, and would like to hide this relationship from user B. These users are assigned to separate (mutually exclusive) roles. I have set the permissions under the 'UR-UI' section so that users with role A can view this relationship, but so users with role B cannot. I have also set the permissions in the 'User Relationships' section so that a user with Role B can have, but not Maintain, Request or Delete this type of relationship.

When logged in as a B and I go to the 'My Relationships' page, I can see the A->B relationships, but want to hide that.

Part of the problem may be that I'm not sure how this 'My Relationships' page is generated. Is it a view? If so, I didn't find it.

I might be missing something simple... Any suggestions would be a big help. I'd be glad to provide more info if necessary (I'd also be willing to re-categorize this issue - I'm not sure how if I've put it in the right category...).

thanks,
-dave.