Secrets Exposed/Spoilers

Spoilers from the "Final Year" episode, Secrets Exposed.
THE HEALY TWINS' CLOSE RELATIONSHIP WILL BE TESTEDD WHEN ONE'S SECRET IS REVEALED.
One of Megan's secrets will be revealed and her relationship with Jenny will never be the same.
Megan Healy is enjoying her last year of high school with her ex-boyfriend and her arch-nemesis out of her life, but she hasn't put one thing behind her, her secret kiss with her sister's ex-fiance, Paul Porter.
In the violent rainstorm episode of Double Trouble, Megan was trapped in the destroyed textbook room at Leawood High during an thunderstorm and sought solace with Paul. The closeness caused her to kiss him unaware he asked her sister to marry him. However, Jenny and Paul split up for good after Paul left Leawood.
Since the storm and Paul's departure, the twins are enjoying senior year, but when Jenny and Megan threw an annual slumber party, Megan accidentally reveals that she kissed Paul, leaving Jenny shocked and furious.
Will the outcome drive a wedge between the twins?