Holby ED is no stranger to broken relationships, but few have been as emotionally tangled as Faith Cadogan and Iain Dean. With the discovery that Faith is pregnant, the past they’ve both tried to outrun has come crashing back into the present — and neither of them is sure what to do with it.

For Iain, the news hits like a wake-up call. He tracks Faith down and, in a moment that feels equal parts hopeful and desperate, suggests they should try again. On the surface, it sounds like the right thing to do. They share history. They’re about to share a child. And somewhere under the hurt and disappointment, there’s still something that looks a lot like love.

But Faith isn’t ready to accept easy answers — especially when they don’t sound like answers at all.

She challenges him, asking the one question that really matters: is this about her, or is it about the baby? The silence that follows says more than any speech could. Iain can’t find the words, can’t offer the reassurance she needs, can’t separate responsibility from feeling. And in that hesitation, Faith hears everything she needs to know.

She turns him down.

It’s not a dramatic rejection. It’s quieter than that. Sadder. She tells him to find someone else to “fix,” a line that cuts deep because it exposes the pattern she’s been living with — being treated like a problem to solve rather than a person to choose. For Faith, this is about protecting herself as much as it is about protecting her heart. She refuses to be someone’s obligation.

Yet Casualty rarely lets emotions stay neatly boxed away.

Soon after, circumstances force Faith and Iain back into each other’s orbit. They’re assigned to work together with a young boy to gather crucial information about a patient whose condition is deteriorating. The case demands patience, empathy, and teamwork — all the things that once made them good together.

In the middle of clinical urgency and a child’s fear, something shifts.

They fall into old rhythms. They communicate without arguing. They support each other instinctively. For a moment, the weight of their personal mess fades, replaced by the shared purpose that first brought them together. It’s not romantic. It’s not dramatic. It’s something quieter — and possibly more dangerous.

Because it reminds them of what they were.

For Faith, this is both comforting and confusing. She sees the version of Iain she used to believe in. For Iain, the case becomes a mirror, reflecting what he’s lost and what he might still want. But the question hangs in the air: is teamwork enough to rebuild trust? Or is it just a temporary truce in the middle of emotional fallout?

Working side by side doesn’t erase the doubt. It doesn’t answer Faith’s question. And it doesn’t magically turn responsibility into love.

But in Holby, even small moments can reopen doors that were never fully closed.

Whether this shared case is the first step back toward each other — or just a reminder of why they fell apart — one thing is clear: Faith and Iain’s story is far from over.