Yes attachments are still complex but also gives a good d element to ones character and balance of this for jedi it can be done good if the writer can think complex about what goes into a romance also its not all going to come out smelling like roses.
I've always liked the idea of IC romance between multiple players, but I've just never had the chance. Can admit, I've shipped PCs. She's dead now and he's a psychopathic assassin so ya know that worked well :)