You are correct if we take time to think about it, also this is a game, so we don't have a sense of time. But we don't have to 'ban' the use of the use of bi-curious because it's useful in saying that "right now, I'm not sure. I lived my whole life as straight". Sexuality is fluid and labels are jus that. Also yes, it might be due do internalized homophobia, but saying someone to not have it is kida impossible.
In saying that, ZZzz straight convert, my ass has the power to turn you gae storyline. No time to help someone discover if they want or not to have sex with me. If you want it, do it.