Over the last couple weeks on 90210, Jen has been exposed as a lying skank; Jasper has pushed Navid down a flight of stairs; and Adrianna has fallen off the wagon.

But these development pale in comparison to an upcoming event on the series:

Sources confirm to TV Guide that a major character will soon attempt suicide! The action will fail, but the publication says it "will spell the end of one main character's time on the show."

The obvious question, therefore: Who will try to off him/herself? Possibilities include:

• Adrianna: She may be trying to kick her drug habit, but she has no friends these days and is a known basket case.
• Annie: When she discovers just what kind of a man she gave her precious flower to, might she react in the most dramatic way possible?
• Kelly: She wasn't exactly the most stable person back in the day. Could former demons return to haunt her?
• Teddy: Simply because he's considered a "main character" this season, but Teddy Donovan is not listed as a series regular.

Do you have any guesses on who will be leaving the show and why? Share them in our forum or in the comments section below.

As you ponder this huge spoiler, check out the trailer for next wee's 90210 episode, the final new installment of 2009:

[video url="http://www.tvfanatic.com/videos/winter-wonderland-promo/" title="Winter Wonderland Promo"] [/video]

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