Mod to store relationships between users (like Facebook)?

[aileron79]

Hi everybody!

I wonder if there is any mod around that allows users to store relationships to other users similar to facebook? Or, more precisely, like on couchsurfing.com where people you know can be added to a list. The other person has to approve the friendship status. This for instance could be "met in person", "I have spoken to this person on the phone", "we had internet chat conversations" and stuff like that. It should be like a social network and connections between people should be shown - also, similar to facebook's "me <=> person x <=> person y <=> person z" concept.

Does anybody know mods that can do that? Thanks in advance!