ROMANTIC --
Damon/Elena
Stefan/Caroline
Stefan/Rebekah
Elijah/Katherine
Bonnie/Jeremy
Matt/Rebekah
Klaus/Caroline
FRIENDSHIP --
Damon/Alaric
Damon/Jeremy
Damon/Matt
Stefan/Klaus
Bonnie/Elena
Elena/Caroline
Elena/Rebekah
Elijah/Damon
Damon/Liz
Elena/Matt
Damon/Caroline
Damon/Meredith
FAMILIAL --
Damon/Stefan
Elena/Jeremy
Damon/Jeremy/Alaric/Elena (or any variation of the four)