user_relationships access for photo gallery

using user_relationships.module, a user can set their gallery content-type so that only related users can access to it. but a gallery of content-type like node_gallery and views_gallery are only referenced to their image content-type. (or am i wrong?)

so, this means that even when the author set their gallery to 'only related users', anyone else can still view all the images in the gallery if they know the URL.

is there any good ways to go around about doing this? an 'only related users' gallery should only be viewable to 'only related users'.