EastEnders spoilers follow.
Rainie Cross will spark suspicion of having an affair from husband Stuart Highway in EastEnders.
Stuart will become consumed with jealousy in scenes airing next week as he continues to hide his breast cancer diagnosis from everyone except Sonia Fowler.
Trouble continues among the couple when Rainie urges Stuart to visit a doctor, not knowing the struggles he's been dealing with for months now.
Rainie also has a heart-to-heart with former enemy Mick Carter in the Square where Mick even brings her flowers as a peace offering for advice she'd given him about wife Linda.
When Rainie tells an obvious lie about where the flowers came from, Stuart starts to become suspicious about what she's up to.
Stuart sets out to secretly follow his wife, only to be intercepted by Sonia encouraging him to go to a cancer support group. The nurse is alarmed later to find Stuart in bad condition.
Stuart eventually tries to apologise to Sonia, yet she warns him she will tell the truth about his diagnosis if anyone asks her. Over in the market, Rainie has another heartfelt chat with Mick as she admits she's worried about him.
Mick wants to lend a hand and even agrees to help look for Stuart's nan Vi, though they have no idea a jealous Stuart is getting the wrong idea as he spies on them.
While all of the Highway drama is going on, Mick faces his own dilemma when Janine Butcher asks him to pose as her partner for a meeting with Scarlett's social worker.
Janine's nemesis Jay Brown is furious when he finds out Mick has agreed to Janine's scheme, so he publicly accuses them of having an affair in the Vic.
Stuart only hears the last bit of Jay's accusation and becomes convinced Rainie is cheating with Mick!
These scenes air on Monday, January 17 and Thursday, January 20 on BBC One.
EastEnders airs on Mondays, Tuesdays, Thursdays and Fridays on BBC One.