A/N: Aria's room ⬆️

Aria's P.O.V
"Come on girls, we don't want to eat here, if they vermin in!" Emily cried on the other end of the phone, she was telling me, Hanna and Spencer what Ali and Mona had done to her when she was at her job.
"Em, I'm sorry," Hanna said, sympathetically.
"When I see her, I'm going to give her a piece of my mind!" Spencer said, the anger building up in her voice. "I mean who does she think she is? Saying stuff like that to people, she hates Mona, why would she suddenly be best friends with her?" It was like the anger towards Ali inside Spencer was rushing out of her.
"Spence!" I said. "You can't give a piece of your mind it will only make things worse! She has all the power in the school, whatever we do it is going to come back ok us." I reasoned.
"Yeah, Aria's right." Hanna said.
"Thanks anyway," Emily said.
"You know what? I'm sick and tired of her parading around the school like she owns it! We should get her back!" Spencer said.
"I don't know." Hanna and Emily said at the same time.
"ARIA! GET DOWNSTAIRS NOW!" My mum shouted.
"Sorry guys, gotta go. See you tomorrow." I hung up. I put my phone on my bed and walked downstairs.
"Yeah?" I asked, walking into the kitchen.
"What is this?" My mum said, holding up a piece of paper.
"A piece of paper?" I asked.
"Don't you act smart with me!" She handing me a piece of paper. I read it:
Dear Miss Montgoumery,
I am regret to inform you that your husband has been having a affair with one of his students. This has been going on for a while for now and I thought it was in your best interests to know what your husband has been getting up to when he said he was 'working' late. I am not the only who knows. Why don't you ask your loving daughter, Aria, what she knows of this. I'm sure she can give you more information than I can. Again, I am so sorry,
Yours Sincerely
-A
"Well?" My mum shouted, tears started running down her face.
"I...I...mum I'm so sorry! I was going to tell you but dad said that if I did, it would break our family apart." I couldn't stop the tears running down my cheeks now.
"Get upstairs!" My mum screamed. I started to walk out of the kitchen and up the stairs. "Aria?" I turned around. "That man is not your father anymore." She spat. I turned and ran up the stairs and slammed my bedroom door. I slid down the back of the door until I was sat on the floor and more tears started to pour out until I was sobbing.

30 minutes later
I had managed to control my tears now and was taking deep breaths. I thought back to the letter. That writing looked familiar. Suddenly it all made sense. Of course! She was with me when I saw my dad and her in the car. I can't believe she would actually tell my mum! I mean she wanted me to but she understood why I didn't want to tell her. She promised me, she promised me she wouldn't say anything. I can't believe Ali would tell my mum that my dad is having an affair with his student, Meredith.