How will 90210 follow up an episode filled with cheating, lying and blackmailing?

With "Revenge of the Nerd," a Valentine's Day installment that will feature the following storylines:

• Navid and Dixon spending time at a Nelly photo shoot.
• Adrianna crashing the festivities with her reality show.
• Naomi surprising herself with feelings for a classmate.
• Teddy leaning on Silver for support.
• Emily trying to get close to Liam.

Get your first look at clips from the episode now.

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