Yeah, goes double if one or more of the character has some kind of split personality or mystical passenger.
EG: in The World God Only Knows
(which is an homungous Love Dodecahedron
anyway) we have three different
love triangles with two (physical) people total.
Loves My Alter Ego
does not really cut it in those cases, but fits as a subtrope for Two-Person Love Triangle
Perfectly Arranged Marriage
as a sub/sister trope works for me.
For more specific subsets, the only example I can think of is in Onidere, and it's so tangled up and confusing I do not even know how to begin explaining it :)
On a side note: any comment on the proposed edits to the trope main text in the previous crowner's discussion? (I linked it in the 3rd post)
edited 15th Oct '12 7:05:52 AM by Gorkamorka