Emmerdale vet Rhona Goskirk faces another heartbreaking setback next week as Paddy Kirk ends their marriage.
Paddy (Dominic Brunt) realises that he can no longer trust Rhona after he finds her with some pills, which prompts her to check into rehab to get professional help for her painkiller addiction.
Here, Zoe Henry - who plays Rhona - reveals what's in store as her troubled character continues to struggle.
Next week, Rhona finds out that Paddy has been confiding in Chas about her drug addiction. How does she feel about that?
"I think she feels really hurt, although she doesn't have a leg to stand on considering what she's just lied to Paddy about, which is enormous. I think she's feeling vulnerable and insecure about everything. She's worried that Paddy has lost trust in their marriage.
"I don't know if Rhona definitely thinks something is going on, but it's an uncomfortable feeling. She doesn't like the fact he's confided in Chas, but she has no right to say that really after her recent behaviour."
Rhona feels that Paddy has broken her trust, doesn't she?
"Yeah, I think it is the breaking trust. Deep down Rhona would never imagine that anything would happen between Paddy and Chas, but she's feeling so lost and so insecure at the moment that anything that rocks the boat is not good for her. She's emotionally unstable after what she's been through."
Paddy catches Rhona with some pills again. Does she intend to take them at this point?
"I don't think she does intend to take them, I think they're a security blanket. I remember when I gave up smoking, it was a similar thing. I would panic at the thought of not having any around, so I can understand that security blanket type thing.
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"I think Rhona actually says that to Paddy: 'I wasn't going to take them - it was a security blanket. I need to know they're there so I've got the strength to stay off them'. However, I wouldn't trust Rhona with them. As much as she says she wasn't going to take them, she'll take one and then she'll be taking the whole packet before you know it. I don't think she can ever be trusted again. She's a true addict."
Does Paddy believe Rhona when she says she hasn't taken any?
"I think he believes she hasn't taken any - she has the pills there and he can see evidence that they haven't been touched, but I doubt he believes that she was never going to take any. If he hadn't have caught her red handed with them, he thinks she may well have taken the odd one or two just to get herself through. That's what she was doing before when she was addicted - getting herself through and not realising she was properly addicted."
Do you think this moment is the last straw for their relationship?
"I think it's a real realisation point for Paddy. I think he realises that he just can't trust Rhona, and a massive part of any marriage is trust. Regardless of whether you're talking about people having affairs or people gambling or whatever, if you can't trust somebody, what have you got?
"They tried to do the cold turkey thing themselves which is terrifying and awful, and then they've gone to the clinic which is the best way to do it, and then she's gone and bought pills. I think Paddy just feels really, really let down and I think Rhona's let herself down. I think she probably feels quite ashamed too."
Do they get the chance to talk this through properly?
"Not really - Paddy's quite black and white about things. As a dithery guy, he's hit the nail on the head pretty much. He's done exactly what I would do which is say, 'No, this is not working anymore. I can't trust you - I've tried but I just can't' and he moves out, which is his way of dealing with it."
What is it that makes Rhona check into rehab?
"I think she realises how much is at stake here, and how much she could lose if she hasn't already lost it. That's her son, her marriage, her dignity, her friendships - all of those. She's risking those on a daily basis and I think she's taking it a bit lightly, the thought of getting over this.
"The reality is that the only way she's going to get everything back on track is if she gets completely clean. When Paddy refuses to speak about it and refuses to move back home, she realises something serious has got to change and something big has got to happen to get things back on track."
How does she feel about going to rehab?
"I think she's terrified. She's terrified of leaving her son behind, she's terrified of it not working, and she's worried about her marriage falling apart whilst she's in there if it hasn't already. I think she's frightened and like a little girl who's lost. She is trying the one last thing that she thinks might help her."
Is Vanessa there for her?
"Yeah, they've sort of patched things up but like any relationship or friendship, if you cross a line - which Rhona clearly did - you have to work to get it back. So yes they're speaking and yes they're friends, but they are in nowhere the sort of friendship state that they were before this terrible episode happened.
"Rhona has still got Vanessa, and she knows that Pearl is there for her as well. Pearl's a real mother figure to her but the reality is that she's on her own. She's got to do this on her own, she's got no choice."
Rhona doesn't see Paddy before she leaves, does she?
"She tries to. She goes and sees Chas and says, 'Look, this is what's happening. I'm going away, can you tell Paddy?' Chas is like 'Absolutely, I'll make sure Paddy comes and talks to you' and he doesn't. I think that's a real home truth for Rhona as well. It makes her realise the severity of the situation and how far she's got to go before she can get things back on track.
"She's a little bit heartbroken about that. I think she would have at least liked to say goodbye to Paddy before she went. This is an open book and she has no idea how long she'll be away for, no idea how long it's going to take her to beat this habit, and it's a scary place. She's not in a good place at the moment."
Do you think this really is the end for Rhona and Paddy?
"I hope not, personally. The actress in me hopes not because I like working with Dominic and I like those characters together - I think they work really well and I enjoy them, but I don't know. Rhona has done awful things and the one person she should have confided in is her husband, and she didn't.
"When you rock the foundations that much in any relationship, it's quite hard to come back. I think Rhona would like dearly to save the marriage - I'm just not sure Paddy will."
What kind of viewer feedback have you seen for this storyline?
"It's really positive. Viewers haven't seen Rhona heading off to rehab yet, but I think they'll be thrilled that she is. The main overriding thing, especially now they see the marriage problems, is that people want Paddy and Rhona to stay together.
"That's a really nice thing for Dom and I to hear because it means something's working that we're doing. So that's the sort of response I'm getting: 'Oh, Paddy's not going to leave her is he?' I can't really answer that question, can I?!"
Additional reporting by Rebecca Heyes.
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Emmerdale airs weeknights at 7pm on ITV, with an extra episode at 8pm on Thursdays.
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