Part of the twist I did not understand
There was a part in the speech of Mrs. Wattlesbrook in the end (when she is getting the feedback from Jane) that I did not fully understand, probably due to not being a native English speaker. I do have the transcript from the subtitles, so I hope some of you can help me. It's this part:
Jane: Martin's a servant.
Mrs. Wattlesbrook: Well, you've seen my servants. I had to take him out just for a little while because things were steaming up. But I had every confidence that he could woo you back. And your timing was very fortunate. Most of the ladies just get a litter of kittens. The foal is the showstopper.
Jane: The foal?
So, as far as I understand, Mrs. Wattlesbrook tells Jane that Martin was not a servant because her servants are not as charming and hot as Martin is. And that he used to be a part of the "main cast" but she removed them because they were fighting. But then I get lost - he could woo her back to where? What was her timing fortunate for? What is a litter of kittens, does she mean it literally or is a wordplay of some sorts? And what does the sentence "The foal is the showstopper" mean?
Thanks for the help!