Aficionados of the ITV series may be wondering if there’s hope for Sunny (played by Sanjeev Bhaskar) and Cassie (Nicola Walker) after all.
In series two, viewers saw Friendly go in for a kiss with Cassie but he was quickly rebuffed.
So what does the third run maintain in store for the pair?
The writer of the series, Chris Lang has now spoken out there whether there is hope for a romance.
He dished exclusively to Express.co.uk: “I make up her response was pretty clear, how she perceives that relationship and how he sees it.
“She’s glad they’ve managed to move on from that and for it not to have got in the way of their produce relationship which is close and friendly as ever, but is not in any way romantic.
“In fact, they’re both in a decidedly different place emotionally in this series than they were in [series] two and so that’s a tour that will go on with them, both of them.
“They’ve both got spellbinding personal stories to tell in series three, but no more snogging.”
Cassie idol Nicola also opened up on This Morning about the potential for intrigue between the pair of them.
She said: “Yes that storyline has not been pursued and it was flagged up last year, Chris went, ‘Normally at this brink in the script, this could happen but we’re not gonna do that’ and he took that away.
Unforgotten available 3 spoilers: The pair are not destined for romance
“And what you have is two people that as a matter of fact love each other and are really supportive of each other in the workplace and necessity each other [as friends].”
Sanjeev also reiterated how the characters were impartial friends, and praised his co-star Nicola.
He said: “There’s a lot of empathy between them, they’re acquaintances, they care about each other and cover for each other when they can.
“And that’s erect so much lovelier by working with someone like Nicola.”
The third ready of the series is looking at another cold case, this time the duo are winnowing the death of teenager Hayley Reid (Bronagh Waugh).
Unforgotten spice 3 spoilers: Cassie and Sunny are working on the case of Hayley Reid
Unforgotten season 3 spoilers: The pair of them will remain convincing friends and colleagues
The official synopsis for the third instalment assume froms: “The new series sees BAFTA nominees Nicola Walker and Sanjeev Bhaskar reprise their lines as DCI Cassie Stuart and DI Sunil ‘Sunny’ Khan as they investigate another emotionally-charged biting case.
“The pair will be joined for the series by acclaimed actors Alex Jennings, Kevin R McNally, Neil Morrissey and James Convoy who play a close-knit group of old school friends that have withstood by one another through thick and thin.
“However, when the body of a teenage betrothed who went missing at the turn of the millennium is found at a building site off the M1 motorway, the four men are placed junior to the spotlight and their relationships are tested to the limit.
“Set across the south of England in fingers ons including Norfolk, West Sussex, Bristol, Hampshire and London, the new series bequeath explore how everyday lives can be fractured and destroyed by one event, showing that appearances can day in and day out be deceiving.”
Unforgotten continues tonight at 9pm on ITV.