Hey it's just my minority opinion.
Watching the hug test closely, I noticed that James himself did the "hetero pat" on almost all the guys!
I know what y'all are sensing in Franklin. My prediction is that he's pretty fresh at self-identifying as gay. My guess is that experience-wise, he falls pretty much in the middle of the sexuality scale. FYI, I'm a bisexual woman (and no, I'm not confused, etc.) Although I was confused, at one point, at how both straight and gay society want you to "pick a team."
So my read on Franklin is that he's one of the few that falls pretty much in the middle rather than tending to one side or the other. And that he used to identify as straight, now identifies as gay, and at some point in his life, will identify as bisexual. So for everyone who reads him as straight, I think that's what you're feeling from him.
Only my opinion!