But how will Stacey react? And is there ever a way back for her and Martin?
After seeing a photo of Ruby and Martin on social media, Jean and Kat are shocked and try desperately to keep to news from Stacey. But when Martin and Ruby arrive back to the Square, Stacey approaches Martin and quickly discovers the truth.
As Hope’s birthday arrives, Martin and Ruby pop round to drop off presents and Ruby smugly invites Stacey to her club later that evening for a party. Deciding to go, Kat and Stacey agree that they'll nick some expensive booze.
Finding the stash in Ruby's office, Stacey is forced to hide under the desk after Ruby and Martin enter for some pre-party action. As things heat up between the new couple, how will she get out of this one?
Caught by Ruby and Martin, Stacey struggles to come up with an excuse as to why she was hiding in the office. Instead of lashing out, Ruby smugly invites her to join the party. However, tensions quickly rise between Stacey and Ruby forcing Martin to step in.
Later, when Martin tells Kush about the awful night, Lily enters complaining about a game on his phone not working, but Kush is quietly gutted when he realises what she has done.
EastEnders continues Mondays, Tuesdays, Thursdays and Fridays on BBC One