Dick and Kory's relationship was part of my youthful comics reading, but I missed the 1970s flirtation between Dick and Barbara. Therefore, when I returned to comics in this decade and learned the state of Dick's love life, it took a little adjusting. Of course, that state has been through a lot of adjusting, too.
I very much like Marv Wolfman's idea of Dick as idealistically monogamous: totally committed to Kory when they're together, unable to deal with her political marriage on Tamaran, guilty over being gulled into sex with someone else, mopey over their break-up.
Yet I don't mind Dick being idealistically monogamous with Barbara or anyone else. That includes his brief infatuation with Miggsie (which, as far as I can recall, never even got to a formal date), his slightly less brief relationship with Helena, his dates with the blonde librarian. Even that strange 1970s pairing with Duela Dent. Dick is drawn to strong women who also seem to need his help.
But I can't swallow the picture of Dick as sexually active without a sense of commitment, as heedless of other relationships—the picture we see in Brothers in Blood and Nightwing Annual, #2. (And perhaps, to be fair, in Nightwing Annual, #1, even if that marriage came in the line of duty.) It's notable that both those unpopular magazines were created in the wake of DC's sudden decision to spare Nightwing from death in Infinite Crisis, as writers struggled to make sense of a narrative arc that had originally pointed in another direction.