That's the important part in making him also a victim, he was still intent on taking her to prom.But did she ask one of her friends who was in nice guy mode at the time for advice on how she could get alone time with Zane without any parents present and did that nice guy perhaps set them up with a hotel room which he set up for them in a romantic setting just because he was such a nice guy?
Until we get any information to the contrary we can assume that Zane has no knowledge of the sex tape (he seemed genuinely blindsided and devastated by Erynn not being his prom date, which is not the reaction of a guy who has just set her up with a sex tape).
Doesn't sound like a guy who sold her out.
If he did sell her out, he sure didn't know for what Ethan was going to use the tape.
They were all in the same school together, perhaps Zane was the patsy that asked Ethan for help(i'd say this is the most likely scenario).So Erryn was so desperate to have sex that she ran to Ethan, of all people, as opposed to having Zane make the arrangements? You could be right. So far, all the clues we've seen would support your thesis instead of mine, and Erryn doesn't seem to think it's him. However, I don't trust Zane. Whether Ethan had something on him and blackmailed him, or he did it for bragging rights, I have the feeling that Zane will have been responsible for the recording when all is revealed.
Erynn says she has no idea how Ethan knew of their date(and was able to tape it).