The season 3 finale of BBC America's spy thriller Killing Eve ended on a much less violent and much more intimate note, with Eve (Sandra Oh) and Villanelle (Jodie Comer) — that way-off-the-books agent and the volatile assassin that she's been tracking, the one who swears that she wants out of that killer life — standing back-to-back on a London bridge, attempting to follow Villanelle's suggestion to walk away from each other for good without looking back.

But Eve just couldn't quite resist, stopping and turning to look back at Villanelle, who then followed suit with a sly smile.

This softer sendoff scene followed a he-said-he-said showdown that placed the Big Four in the same room: Eve, Villanelle, MI6 higher-up Carolyn (Fiona Shaw), and Villanelle's handler Konstantin (Kim Bodnia).

With Carolyn's gun leveled at his head — and faced with evidence that he was indeed there with Carolyn's son, Kenny (Sean Delaney) on the night that he plunged to his death — Konstantin insisted that he was only trying to warn Kenny of the dangers of his investigation into the Twelve, and Kenny backed away from him, falling off the building.

The episode's body count also claimed a different Villanelle handler, Dasha (Harriet Walter): After being attacked by Villanelle and then Eve — and taunted by Konstantin — Dasha never made it home to mother Russia, or even out of her hospital bed.

I think that what was really appealing was for both of them to have an honest conversation, which we rarely see — particularly with the revelation in the earlier scene that they were both complicit in somebody else's death.

I can't stop thinking about you." And for Villanelle to say, "Well, it's really easy.

You just walk away." They walk away and Eve turns around with Villanelle, and I think what you see in her is she knows that Eve is going to turn around.

I think it's a little bit more [of that].

They are entwined and what they've done for each other — because Villanelle has had relationships before, which was significant, with Anna [Susan Lynch], in particular.

And that is really intoxicating and hard to walk away from.

I think it is really hard to walk away from something [when] somebody sees you in a very unique way that makes you feel like you're a little sunflower in the sunlight.

That's really hard to step away from that.

At the end of season 2, Konstantin dropped that rather manipulative, if slightly cruel, note that "You think your family are dead — well, they're not." Villanelle didn't like the lack of control she felt about that.

You're always rotten to the core."… But that is going to leave something in Villanelle: "Well, can she change.

Is her fate really always going to be one thing?" She's clever.

There always has been, really, from season 2 onwards: "What does that relationship look like?" And if they were to sit down and have another proper couples counseling, somebody might come out of that going, "Really.

You really think this is going to last?" Maybe we'll do that.

I don't think we should ever believe Konstantin.

But in two seconds he's walking out of there like he's got away with it — and not only that, he's taking the Russian dolls wrapped up in the plastic bag.

I don't think you should ever trust Konstantin with anything?

The depth of grief that she felt for her son — somebody had to pay for that, and I think it was a very emotionally driven response?

I think he just knows that she's toast, and I don't think he was responsible for it?

I don't know.

So I don't think she's as bouncy as Villanelle is?

Ultimately we really wanted Niko to have the power to walk away and to say "piss off" rather than him being dispatched by a third party.

Speaking of that moment where Eve was about to kill Dasha: If Eve didn't hear the police sirens, would she have finished the job — or did that jolt of reality also remind her that she didn't want to be like Villanelle.

If somebody is really that ill and you put all of your weight on their chest — and you've done this quite a long time with a look that could kill — you've got to understand that there could be mortal circumstances.

Hélène (Camille Cottin) is going to be none too pleased that her rising assassin Rhian (Alexandra Roach) was killed by Villanelle.

Hélène is the highest that we've ever met in the Twelve, and the fact that Villanelle went against her and killed her pet protégé, the Twelve support for her just might wane a little bit!

We're not going to do anything without people being entirely safe, and we don't really want to compromise the vision for the show, either?