Earlier today we posted a new batch of Gossip Girl sneak previews for this coming Monday's episode, "The Unblairable Lightness of Being." Now, we're fast forwarding a bit.

To April 26, that is. Apparently, there's no new episode on the 19th (?) but in any case, "Dr. Estrangeloved" looks like it will make up for that one-week layoff and then some.

In the promo below, it appears that Jenny Humphrey goes totally off the rails, making her move on Nate and threatening his romance with Serena using a three-step plan:

1. Create doubt.
   
2. Seduce.
   
3. Close the deal.

Is she taking her plot so far that she sets into motion a chain reaction which leaves Jenny off the show for part or all of next season? Looks more and more that way.

Meanwhile, there are some brief images of Chuck in the "Dr. Estrangeloved" promo that may make despondent Chair fans cringe. Just warning you ahead of time there.

Check out the promo here and share your comments below ...

[video url="http://www.tvfanatic.com/videos/dr-strangeloved-promo/" title="Dr. Strangeloved Promo"] [/video]

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.