Not seeing him, who knows? Could be? I asked that earlier...when you said he's wanting out, there's a reason for that, maybe too hot, maybe to breed, etc.
I've mostly been addressing your observations- blood, seems in pain, thrashing, aspen stuck in cloaca. Like I said, not seeing him & being online, cannot Dx.
I hope he's just horny but I just read someones snake did that when being paired so it might be that. The other stuff is concerning though.