Marjan can’t really be leaving9-1-1: Lone Star… right?

We’ve seen9-1-1first responders fade into the distance before.

(Thank you for your service, Liv Tyler.

9-1-1 LONE STAR: Natacha Karam in the “Human Resources” episode

Natacha Karam on ‘9-1-1: Lone Star’.Kevin Estrada/FOX

And where exactly isArielle Kebbel’s Lucy Donato?)

But Natacha Karam’s Marjan has three full seasons under her helmet, a fan favorite since episode 1.

Still, it felt pretty permanent when Marjan lit her career on fire and rode off on Capt.

Strand’s (Rob Lowe) motorcycle at the end ofTuesday’s episode of the Fox drama.

It apparently felt pretty permanent filming the episode, as well.

“It was heavy.

It was a heavy scene,” Karam tells EW of Marjan saying goodbye to her firehousemates.

“There was a lot of sadness in the room.

No one had seen the next scripts, so even as actors we didn’t know.

It was like, ‘Okay.

Well, when am I going to get to work with all of you again as characters?’

It was extremely sad.”

we will see her on the show again.

It should be, “Oh my God.

I’m sorry I hurt and offended you.

Let me know how I can do better.”

you could’t tell someone that they didn’t take offense at something.

That is their reality.

And then it gives you the opportunity to be accountable, and grow, and be better.

And Marjan is willing to say I’m sorry.

But they don’t want a sincere apology.

They want to take advantage of the five million people following her people she feels a responsibility to protect.

And there was no middle ground?

She second-guesses herself when trying to rescue a man from a fire.

Those extra seconds she took could put everyone’s life in danger.

So that feeling that maybe she could figure out a way to stay is very quickly disappearing.

And I’m not really allowed to be here anyway unless I start meeting this couple’s demands.

What was it like filming that goodbye scene?

There’s kind of this paralysis within her that’s set in.

And everyone’s just watching it and knows that there’s nothing they can do.

I think everyone felt really helpless watching her drive off, and no one knew what was coming next.

She does mention she’ll be atTK and Carlos' wedding.

And the idea of the wedding is like, “Yeah.

Of course all my friendships and relationships are going to sustain themselves.

It’s just the professional element of it.”

Of course, I’m going to still come to my friend’s wedding.

Of course I’m still going to show up for birthdays and be on FaceTime.

But I’m not going to be here as a firefighter anymore.

That’s the part that’s going to be different.

So… what is coming next?

It’s not like Marjan is just going to come right back and start working at the firehouse again.

That is not the arc of this season.

She’s out of state.

This interview has been edited and condensed for length and clarity.

9-1-1: Lone Starairs Tuesdays at 8 p.m.