Basic Instinct - S1.E4

Opal has to face the board as the new principal on Open Night. Opal finds out from Lisa Overbeck that Mitch had never signed his divorce papers, so he was still technically married while dating Opal. Now, Mitch wants Opal back. Riley finds out Evan, her new boyfriend, is still involved with Cynthia, his girlfriend from last year. Riley begins to see that she might have something in common with Opal after all.