After the kiss, Jackson decided to tell Vanessa the truth.
"Vanessa, I don't really like you. I didn't like that you were hitting on me while I was trying to work. I also didn't like that kiss. I'm sorry, but the only reason I kissed you back is because I thought that if I kissed back, you would stop. I'm sorry. I also know if Hannah finds out about this, she will hate you forever. I don't think you should do that to her. If she knows, apologize, if not, keep it that way. Go to her, Vanessa."
She knew he was right, so she went up to Miley's room.