As fans know, the episode airing on Thursday, September 13 sees Kat confess her infidelity to Alfie, with the following night's edition focusing on the dramatic fallout for the Moons.
However, we can confirm that viewers won't find out the identity of Kat's mystery man next week. With Kat reluctant to let his name slip in her emotional heart-to-heart with Alfie, that secret will stay under wraps for now…
Show bosses have always promised to eliminate the suspects one by one, and this continues as another of the men will soon be officially ruled out as Ray was recently.
Meanwhile, those suggesting that Kat's mystery lover could be a shock outsider like Joey, Tyler or Fatboy may have to guess again, as next week's episodes make it pretty much certain that it's one of the named suspects.
As readers may have guessed from our spoiler for the Friday episode, this instalment is focused almost entirely on the Moons' affair dramas and Janine's shock ultimatum to Michael.
The Friday edition is penned by Simon Ashdown and only eight regular characters appear - Janine, Michael, Kat, Alfie, Derek, Max, Jack and Jean.
> Read our full spoilers for upcoming 'EastEnders' episodes
Who do you think Kat's lover is? Share your theory below!