Major impressions (by Jen) and major decisions (by Adrianna) marked this episode of 90210.

In the end, viewers were left to wonder about the future of various relationships, from the Clark sisters to Adrianna's baby. Catch up on "The Party's Over" right now by reading through our detailed episode guide.

Relive the episode below, as these were a few of our favorite 90210 quotes from the installment:

Liam (to Annie): When you finally can't take it anymore, and you explore, it's gonna be fantastic. | permalink

Ethan: You know how they say no man is an island? I think every man is an island. | permalink

Mrs. Shirazi: You're gonna ruin your lives. And the child's, too. | permalink

Ryan: You're Naomi's sister, right? She never mentioned you were so violent. | permalink

Jen: The world is our oyster, baby sister.
Naomi: To oysters! | permalink

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.