But will it be enough to stop them getting married?
As Kathy and Rocky's wedding day arrives, Kathy excitedly prepares to say 'I do', however, Rocky and Bobby are both panicking after the events of the stag night.
After confiding in Sonia, Rocky is advised to come clean to Kathy, but when he does so, she's gutted to hear his confession and later tells Elaine she’s not sure she’s going to go through with the wedding. But Ben arrives to surprise her with something that just might persuade her to think again.
Meanwhile, Rocky waits nervously at the registry office, but his day takes a nightmare turn when Jo arrives!
Horrified, Rocky tries to take the news in as Kathy arrives to marry him and as the registrar starts the ceremony, Rocky's heart is in his mouth as Jo watches on.
Later, Rocky and Kathy face the consequences of Jo’s vicious revenge.
EastEnders continues Mondays to Thursdays at 7.30pm on BBC One