I've never felt that. I've read the FF since the '60s. To me, the original Torch Crystal story is like Marvel's Romeo and Juliet, which may be why they won't ever get them together... sighing sadly.
But I don't see Torch being bi at all. Maybe I see him being chummy with Wyatt or a few others, and maybe, teeny weeny possible. But he's had to many relationships with women that got pretty serious, as well as married. Wouldn't a SKRull like Lyja seen that more likely (not that she would express it 'on panel')