Playing With / Mistaken for Cheating

Basic Trope: A character believes his/her significant other is cheating on them.
  • Straight: Alice sees her boyfriend Bob and his friend Claire alone together and assumes he's cheating.
  • Exaggerated: Bob strikes up an innocuous conversation with Claire, which arouses Alice's suspicions.
  • Downplayed: Alice sees Bob staring at Claire's chest and assumes he's blatantly checking her out. Really he's just astonished by Claire's ugly shirt.
  • Justified:
    • Alice's previous boyfriend cheated on her, so she's more likely to assume other guys are cheating.
    • Or Bob has a known history of cheating of his girlfriends, but is working hard to amend his ways.
  • Inverted:
    • Bob and Claire make out in front of Alice - and she doesn't suspect a thing.
    • Alice suspects Bob of everything but cheating, only to learn that he was having an affair with Claire.
  • Subverted: It turns out Bob really was cheating on Alice.
  • Double Subverted: With her clone.
  • Parodied: Alice, of all people, turns out to be the other woman.
  • Zig Zagged: However, it turns out Bob really WAS cheating on her, with Alice's sister, who asked Claire to tell Alice nothing happened between Claire and Bob.
  • Averted: Alice doesn't assume Bob is cheating.
  • Enforced: "Alice and Bob are happy, right? We can't have that!"
  • Lampshaded: "I hope Alice doesn't think there's anything between us!"
  • Invoked: When Bob believes Alice is losing interest in him, he starts hanging around with Claire to make her jealous.
  • Exploited: Charlie tries to confirm Alice's suspicions. So that she will leave Bob & start going out with him.
  • Defied: Bob refuses to even do anything that could be construed as romantic with any other females, because he doesn't want to make Alice assume anything.
  • Discussed: "It's all a mistake! I wasn't cheating!"
  • Conversed: "Oh, another plot where she thinks he's cheating on her."
  • Deconstructed: Alice's constant suspicions start to derail the relationship and end up destroying it, as the constantly-faithful Bob decides he's had enough of it.
  • Reconstructed: Claire is eventually able to prove Bob's innocence, leading Alice to try to win Bob back over and repair their relationship.

Honey, I can explain the Lipstick Mark, the bra in my bed, and the photos! Just go back to Mistaken for Cheating!