Well, it IS a straight relationship if it's a heterosexual pairing even if the characters themselves aren't straight. I also agree it's a bit patronizing to claim a character is bisexual in interviews or whatever, but never even have them experience same-sex attraction, much less relationships, in the medium itself.

Now, being insistent that an obviously heterosexual relationship is "queer" is its own goofy issue. It always seems to come from insecure people who are desperate to be special. Unfortunately for those of us who just want to be left alone, ~QUEER~ is the latest fashion statement for this sort of thing.