Nobody wants Suzaku beyond Euphie, and she is dead.
Kallen and C.C. are into Lelouch. Kaguya is into Zero, but there is no real development there. Shirley was after Lelouch and she died. Milly kind of wanted Lelouch, but she lusted after him in secret.
Beyond that there is Toudou and whoever her name is, Villetta and Ogi. Cecille may or may not secretly lust for Lloyd'd member.
So its basically been a 2 girl show for the main character, a no girl show for his best friend turned enemy and a 1 to 1 relationship for other side characters.