|“||Really? Cause I know how you like to shop out of other people's carts.||”|
— Melissa to Spencer
Spelissa is the sibling name for Spencer Hastings and Melissa Hastings. Their relationship changes up throughout each and every season. In some episodes they're at each other's throats but in others they're kind and caring towards one another.
They have a love-hate relationship. Sometimes, Spencer isn't sure if she can trust Melissa because she is somehow always connected to Alison's disappearance. Melissa is also a popular suspect by The Liars of being on The A-Team in several seasons. They fight a lot but sometimes if it is very serious they can count on each other. After all they are still siblings. When Spencer was in elementary school a bully named Kendra Santoni "made Spencer her personal punching bag" as said in My Name is Trouble, and one time Spencer came home with red marks on her chest from being slapped with a jump rope. She was to scared to tell her mother, but Melissa saw the marks, and told Kendra that if she hit Spencer again she would make Kendra eat that jump rope. Most of their fights are about Alison DiLaurentis, Garrett Reynolds,The A-Team with the huge fights regarding Wren Kingston and Ian Thomasl Their parents would often side with Melissa.
Melissa and Spencer would return from a strategy campaign, regarding Spencer's interview style, to the barn. After an exchange between Spencer and Caleb, Melissa would question her regarding her status with Caleb. Later on, Melissa would be helping at a booth while Spencer would have an interviw with Damian regarding young people's voting. Later that night, Spencer would find a freaked out Melissa; she would explain that while doing an interview the mood changed after Damian got a call. She would question Spencer to see what she did with the tape, regarding her confession of burying Bethany, before quickly going up to her room. (The Gloves Are On)
Melissa is mentioned by Mary when speaking to Spencer and a picture is shown of the two girls. (Tick-Tock, Bitches)
Melissa [in Pilot (1.01)]: I was hoping you'd be happy for me.
Spencer: Well, you know what they say about hope. It breeds eternal misery.
Spencer [in To Kill A Mocking Girl (1.03)]: I made some pasta if you're hungry.
Melissa: I'm not eating pasta. I don't wanna be depressed AND fat.
Melissa [in Keep Your Friends Close (1.10)]: I actually had a good time with Ian.
Spencer: Wow. I will alert TMZ.
Melissa [in Will the Circle be Unbroken? (3.22)]: Spencer, what happened?
Spencer: How far back do you want me to go?
[Melissa starts crying]
Spencer: Right. I'm in a psych ward and you're the one crying.
Melissa [in Face Time (4.04): You don't understand! You've never understood! I've been protecting you since it started! Since before it started!
Melissa [in No One Here Can Love or Understand Me (5.11)]: Goodbye Spencer, I love you!
Melissa [in The Gloves Are On (6.13)]: When did that happen?
Spencer: What? Caleb? We're friends.
Melissa: Really? Cause I know how you like to shop out of other people's carts.