For example, that episode where he finds the alien healing machine (that eventually saves Ivonava and does Marcus in), he's pretty into that blond chick, what was her name, ... uh... damn, I can't remember her name, but the episode was The Quality of Mercy. He had chemistry with her.
Now THERE is an novel attempt to save a marriage!!! I don't buy it. Most couple just get divorced or have a kid.
Even with Franklin's strongest romantic moment, the singer, he was not a credible romantic lead, and you certainly can't blame the actress there, she was great. I don't know if it's Biggs' acting, the way his character was written or just that he didn't get as much screen time, but I just cringe whenever I see him with a woman.
I gave it a C because it's kinda boring and really doesn't have a whole lot to do with the rest of season 2.