Why I think Cam started transitioning
So, before Cam got into the whole transgender/throuple thing when they first met Cody and the other, they were super into being a gay girl/lesbian/queer in general from what I remember. I feel like they wanted to hold onto the queer label, but were falling for Cody (a trans man) Cam probably thought they would be disrespectful of Cody's identity if they were identifying as a queer girl while dating a man. Also didn't want to feel like they were in a straight relationship bc Cam doesn't want to feel like "the weaker one" in a relationship with a man. The more obvious part is that they did indeed latch onto Cody and steal his entire identity and look. They're a parrot, it's so so creepy.
Going back to not wanting to feel like the "weak" partner in a straight relationship, Cam is in a relationship with two men who are both bigger than them and I feel like Cam just got pulled more and more away from the idea of being a girl in this relationship with two men. And yes, Cam has no idea who they are, no sense of self and it's sadly obvious