For what its worth, as a very old school fan and reader (62 this last November), I loved Dick and Starfire in old Titans. Wolfman, et al, really did a good job on their relationship. I don't recall how they ended, but they must have....
Old School take 2, says Babs, in the Silvery age turning to Bronze and beyond, was played as at least 2 or 3 years older than Dick, which didn't mean much perhaps, and of course now, it is actually reversed, so... a little weird.
I saw Dick and Babs as more colleagues back then. I think Batgirl and Supergirl's strong friendship in the Silvery/Bronze age was to me, her more important one.
I missed most/any of post crisis Titans or stories where Flamebird insinuated herself or tried to, into Dick's life - so I don't have that baggage attached.
I just think there is something special about the ideas *behind* Nightwing and Flamebird, that I would like to see in Dick and Bette.
Most characters have the opportunity to have a relationship that might seem it holds up to "real life standards", so I wouldn't expect marriage or the soulmate thing. I just want to see something though.