But will the evening be memorable for all the wrong reasons?
When Sienna takes Sophie to the manor to see Rafe, a rude comment from Camilla sees her and Dilly banished from the room.
Later, Rafe asks Sienna to join him at the ball and when Sienna bumps into Ethan in the park, she tells him that Rafe has made it clear that it's her who he'll propose to. Heartbroken, but wanting Sienna to be happy, Ethan wishes her luck and in The Loft, Ethan confesses to Darren he still loves Sienna.
As Sienna prepares herself for the big proposal, Camilla and Dilly are out to sabotage her plans and things take a disastrous turn when Leela has to jump in and play taxi to make sure Sienna gets to the ball.
As she’s leaving and while Ethan declares his love for his ex, Leela accidentally reverses into Sienna!
The Earl jumps to her side and when Dilly helps her with an outfit change Sienna assures her that whatever the future may bring for her and Rafe she is prepared.
Meanwhile, Tony and Diane enjoy the high life at the extravagant party.
And later, the ball is made memorable for all the wrong reasons.
Hollyoaks continues Mondays to Fridays at 7pm on E4 with first look episodes available weekdays at 7.30pm on Channel 4 streaming