User blog comment:Sarah G.lato/Episode about Darwin and Carrie/@comment-25453486-20180531174751

Don't worry. Ben said there was more Carwin to come in season six, making it sound as if the crew had thought of an episode that'll explore the reasons behind the pairing...That's what I understood by his statement on Twitter...

About Rachel, no. She's probably not coming back, Ben Bocquelet doesn't like her. And no, she's not Darwin's girlfriend. She never was, in fact.

A little tip for you: next time you write something, anything, try to divide the text in different paragraphs and use proper punctuation. Otherwise, reading it is truly a hindrance.