Warning: This post contains spoilers from theMare of Easttownfinale.

But when she tried to wrestle it out of his hands, things went awry.

EW spoke with Nicholson about the finale and Lori’s involvement in the season’s big twist.

ENTERTAINMENT WEEKLY: Did you know the ending going into this project?

JULIANNE NICHOLSON:I did know the ending going into it.

I did know what was coming.

But then Lori didn’t know until John laid it all out for her there at the end.

I guess it depends.

There’s value in both.

We don’t want to give anything away.

To me, it’s an interesting idea to have the information but not reveal it yet.

But I also love secrets and surprises.

Let’s go back to the beginning: What initially made you want to do this show?

I hadn’t seen Kate in about 10 years or so.

It’s been so exciting to see how people have been responding to it.

So what was your reaction when you found out the ending?

Were you satisfied with it as the ending for this story?

Yeah, I was.

There was a moment where I was like, “Did Lori do it?”

[Laughs] I know it’s acting but still.

That would be a lot.

I think Mare would go off the deep end.

Or maybe not, I’m sure she’d compartmentalize it.

I love that it’s ultimately a story about mothers and sons and friendship.

I was genuinely worried for a second that Lori wasn’t going to forgive Mare.

Well, that’s good!

You’ve ruined everything and you didn’t have to!"

I still feel like she didn’t have to.

I think I just felt protective of Lori and Ryan in particular.

It’s such a tragedy, so awful.

Did you actually get to shoot your final scene last?

No, we shot all seven episodes together.

Also, the scene where we go to visit Ryan in the end.

It took a lot of people to keep that on track.

Was this role as emotionally draining for you as it looked?

I found that more jarring than the work of it.

But those are big stakes, so to make a run at play them as honestly as possible.

It did feel exhausting.