I just got finished catching up on the last 100 or so pages of drama. I'm genuinely surprised that more people didn't expect the whole "bi" thing. There have been claims that Dylan is bi/pan for years. Several guys from his HS we're skeptical of Dylan because he (allegedly) slept with their sisters or female friends despite being out and getting headlines for publishing his poetry book. This was before he dated Grant Mower and even after they broke up.
But everyone stopped talking about it for a while when he dated Jackson's drama started. A few of the guys, and the girls, actually tried proving it in various places (mostly Tumblr or data lounge posts) but it kept getting taken down within hours to days. Some accounts even got banned.
I get why some are confused though because he certainly marketed himself one way, then claims something else on social media for years. But honestly, It's really nothing new for clout chasers. Personally, I don't really care what he is, I just love the tea.