Perhaps it says something about how society is evolving that fans of ABC's "Brothers & Sisters" (10 p.m. Sunday, WTAE) are far less concerned about the gay romance and pending nuptials of Kevin (Matthew Rhys) and Scotty (Luke MacFarlane) than they are about the budding romance between Justin (Dave Annable) and Rebecca (Emily Van Camp), who until recently believed they were half-siblings. Turns out they are not related but they have behaved as if they were for the past year.

Fans are divided into two camps, those who think the idea of romance between these two is icky and those who think it's just swell. Personally, I can see both sides.

As Justin's older brother, Tommy (Balthazar Getty), notes, "It doesn't take a rocket scientist to see you two have connected."

Indeed, the actors have great chemistry and were rumored to be dating off-screen at one point. But the upshot of the writers' decision to not make Rebecca a Walker sort of invalidates much of what viewers invested in last season and requires the writers to jump through still more hoops Sunday with a new revelation that may send the show spinning into even soapier terrain come fall.

I'll admit I had no sympathy when series creator Jon Robin Baitz was let go and vented about his experience working on the show. He comes off as insufferable. In the first season "Brothers & Sisters" surely needed the more accessible and lighter touch executive producer Greg Berlanti brought to it. But I also can't help but think that Baitz would not have allowed the show's plots to veer so far from reality.

He also wouldn't have allowed Saul (Ron Rifkin) to become such an underused character, reduced to a comical coming out in Sunday's season finale.

"God, this is the gayest week of my life," Justin mutters after Saul comes out around the time of Kevin and Scotty's committment ceremony.

Perhaps it's a tribute to Baitz that the Kevin and Scotty story is the most believable and resonant on the show these days. Maybe, for that same reason, their relationship hasn't elicited the hue and cry that's greeting Justin and Rebecca