Blake's condition and the way his parents angrily berate him is disturbing. The parents seem to think it is his fault the police brought him to the hospital. There are many reasons a policeman might do that. It doesn't mean that Blake did anything wrong. He may well be the victim. I know that is stating the obvious, but it does show that his parents don't listen to Blake, and don't care enough to check with the police to find out why Blake was taken to the hospital. It also shows that the police don't have a reason to contact Blakes parents, so what is his parents real problem with Blake? I hope Seth takes the initiative to visit Blake and find out.
From Craig's actions we know he is arrogant and feels privileged. He is probably also bisexual and definitely hormonally driven. However, there is too little evidence so far to label him a sexual predator. For now, I will just say I don't like the asshat.
I too suspect that Seth's mother believes Seth is gay. No evidence, but it is just my guess. I also think it is why she treats him like a servant and favors Stacey. I wonder if there is a connection to why Seth's father left the family. Ronyx does like to keep us in suspense. There are so many questions!