Ah, for some of us, indeed, love is unrequited. Poor Lennier. Poor Zack. And poor Marcus.
Londo's love was not unrequited, but it did end early, suddenly, and tragically.
it's not clear g'kar loved. kosh either.
Garibaldi had a happy ending. good for him - he certainly deserved it!
franklin got lucky. and vir is a genuine mac-daddy.
ivanova - she's just fucked up. caused pain to herself and
marcus. women. by the way, the problem was systemic: she pretty much did the same with talia too (until, basically, it was too late...)
zoe is dead.