Is there any reason to think she's about to leave or is this some wishful thinking from the usual suspects?
She's had a terrible week (and that's saying something given her premiership to date).
She had to sack the chancellor that enacted all of her campaign promises, bring in a new chancellor who has undone all of her campaign promises.
Some of the polls coming out suggest the Conservatives would be in 3rd place at a General Election behind the SNP.