It turns out Kate Wallis has actually been telling the truth onCruel Summer.
ENTERTAINMENT WEEKLY: That ending had my jaw on the floor!
What was your reaction to it when you read the script for the first time?

Blake Lee and Olivia Holt in ‘Cruel Summer.'.Freeform
OLIVIA HOLT:Yeah, we got the script and we immediately dove into every element of it.
What was it like bringing those scenes to life where Kate gets deeper and deeper into this grooming relationship?
We felt so comfortable with each other to just try anything.
We just wanted to be as real and honest with it as possible.
In real life, someone would have to deal with it for the rest of their life.
LEE:I was really impressed by those scenes.
What was the most challenging scene for you to film from this episode?
That last day is when we started shooting the Christmas dinner scene.
I’ve never experienced anything like it in my career.
Is there even more to the story of Kate and Jeanette that we haven’t seen yet?
HOLT:One hundred percent.
So what can you tease about what’s coming next, in the finale?
LEE:You’ll get to see a lot of questions answered.
Up until the very moment, truly up until the last scene, there are surprises.
Olivia, what else?
LEE:[Sings] Annabelle!
Sydney, what is your theory on Annabelle?
I’m going to go like this [covers face] so I don’t give anything away.
I’ve got two prevailing theories.
One is that Kate became pregnant and the baby’s name is or was Annabelle.
LEE:[Smiles] Okay.
I’m excited for you to see what happened.
Just in such shock.
HOLT:I don’t think I read it in the script, I think I was told.
The finale episode, I needed like a couple of nights to decompress from all of it.
[Laughs] Maybe that’s just because I was living it for five months.
HOLT:That it wasn’t okay.
Just stop the stigma around this conversation.
LEE:Yeah, I agree.
We’re doing such a disservice to people if you’re glamorizing something like this.
It should never be okay.
You should never be questioning that.
TheCruel Summerfinale airs Tuesday at 10 p.m. ET/PT on Freeform.