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We want Mona back!
Spencer to Charles about Mona in Game On, Charles

Spona is the friendship/rivalry between Spencer Hastings and Mona Vanderwaal.


Spencer and Mona are close friends. They are both former A-Team Members during season 3. They also both had the same bedroom at Radley. Spencer and Mona were enemies during the first five seasons, mainly due to their academic abilities and their rivaling friendships with Hanna, but became closer because of A. In many episodes, Mona says things that the Liars don't understand but Spencer can.


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  • Spencer stood by as Alison bullied Mona, which lead to resentment on Mona's behalf.
  • Mona always admired Spencer for her intelligence.
  • They competed against each other for debate-team captain.
  • Mona originally wanted Spencer to join the A-team, and offered her the chance after hitting her over the head in "UnmAsked".
  • Mona talked to Spencer while Spencer was in Radley and offered her cookie, although she mainly went to aggravate her and mock what has happened since.
  • After the five-year jump, they both were involved in politics.
  • Mona accidentally told Spencer that Veronica had cancer.
  • Mona helped Spencer with her mothers campaign.
  • Mona hit Spencer over the head and knocked her unconscious so that Spencer could be kidnapped by and meet Alex Drake.


Spencer: Mona is five feet of insidious snark with a side ponytail, and I just wanna grab it and yank it really, really hard!

Spencer: If you've become the Mona that you want to be, why are you letting Noel Khan tell you that you're not good enough?

Mona: Thanks to Alison, I went years without any friends.
Spencer: I'm sorry for that.

Mona (to Spencer): I admire you, Spencer, so I'm going to let you choose how this ends, tonight. You can join the A-Team, or you can disappear.

Mona (to Spencer): You're not the only genius in this car. You bitches underestimated me.

Mona: Look at how much has happened since our little drive up the mountain. All the pain and disappointment and loss because you were stubborn. But I believe in second chances. I'm a generous person.
Spencer: No, you're not. You wouldn't be here if you didn't need something and whatever it is, Mona, the answer's no.

Mona (to Spencer about The Liars): And yet I don't see any of them here with you now. Do you still have any friends, Spencer?
Spencer: DIE!!!



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