But is his arrival good news?
Venting to Ash about how Liam is treating his sister, Peter tries to help Ash deal with what happened with Harvey.
After some crossed wires with Peter and Kat, Kat confronts Ash who reveals what Harvey said, leaving Kat floored. Finding Harvey in The Vic, Kat promptly sacks him as he tries to explain that what he said was taken the wrong way.
When Harvey tells Dana he’s been fired, she reminds him that he needs to be careful about things he says causing upset, persuading him to talk to Ash.
Feeling guilty about lying to him about Bobby, they agree to come clean and Harvey clears the air with Ash and she softens to his apology, but Peter is outraged and chucks him out.
Harvey tells Kathy about his day from hell and how Peter has made it worse. But when he realises that Dana has been over and that he’s being lied to, he storms out.
Telling Harvey that he needs to make amends with everyone, Dana says she'll help him get his job back.
Later, at the cab office, Aaron arrives much to Harvey’s delight but Dana isn’t as impressed to see her brother.
At The Vic, Aaron gives Harvey some bad advice and rudely snaps at Dana for not taking their dad’s side, leaving her humiliated.
Meanwhile, Tiff likes what she sees after Aaron asks her for directions and later Aaron tells her that plans to be in Walford for a bit. But with Liam being overprotective, Tiff tells him that it's too soon for her to be dating after Keegan.
As Harvey fills Aaron in about Bobby, he tells his dad he wants to stay for a while having spotted someone that’s caught his eye. He later asks Tiffany out for a date and after some persuading, she agrees.
EastEnders continues Mondays, Tuesdays, Thursdays and Fridays on BBC One