Warning: This story contains major spoilers from the season finale of12 Monkeys.

Read at your own risk!

How will she deal in the wake of that reveal?

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Credit: Ben Mark Holzberg/Syfy

EW turned to Schull to find out.

(Read our full postmortem with executive producer Terry Matalashere.)

AMANDA SCHULL:[Executive producer Terry Matalas] told me fairly early on.

Its much more impactful knowing later on after having been able to reenact those scenarios from the page.

We dont say it, its all done through looks.

I really liked the challenge.

I really like having that interaction with Aaron.

I work really comfortably with Aaron.

I really enjoy everything that we get to do together.

Ive never told anybody that Im pregnant, so Ive never had that opportunity to tell somebody that.

And his reaction, just everything that theyve gone through up until that point really moved me.

My initial reaction to that when we were talking about it was very un-[politically correct].

It was basically, Get it out of me at any cost.

She could rewrite history if she were able to undo this.

We know that Cole is headed toward the future to try and save Cassie.

Of anyones partnership on this show, they seem to have the understanding of one another for whatever reason.

They were sort of meant for each other.

I think they would have an understanding.

Do you think that there is any resentment there that Cole changed time without telling Cassie?

[Laughs] I think theres a lot of resentment.

We dont know how he told her.

You said you survived, did I survive?

And he said, Yeah, I heard that you became a doctor.

And she said, You heard?

You mean we werent together?

What was it like shooting that love scene between Cassie and Cole?

Had you basically been expecting this since the beginning?

Also, on a personal level, Aaron is now my friend.

This is somebody who I worked with for two years before this has happened.

Im really good friends with his girlfriend and hes really good friends with my husband.

After we got the first kiss out of the way it was like, Oh, okay.

This is going to be fine.

So do you feel like those feelings survived Cole changing time?

She says to him, A house, cedar, and pine.

We lived together, it was our home, we were in love.

Just in that moment thats when the Titan awakens the machines.

And we added that and then we added, For me.

Because its different now, she remembers its for me.

Its almost like a choosing moment, Choose me.

Lets go have our life, forget about Ramse, lets go.

Will that put her in his crosshairs?

I dont think that her baring the Witness is really going to change his perspective at all.

Hes been willing to kill her before, when she was holding the gun to Sams head.

Hed be willing to put her in his crosshairs absolutely.

Things are not really looking good for her at the top of season 3, are they?

Well, also the fact that the catalyst for basically everything is Cassies death at the CDC.

Do you think there is no saving Cassie at this point?

I mean the show obviously is science fiction, but then theres a very moral undercurrent to it.

I dont know whether she has to end up back there.

I dont know, thats getting super science fictiony.

Id have to sit down with a chart to try and figure that out.

Or the word of the Witness?

12 Monkeyswill return for season 3 in 2017.

Check out the first promo below.