While dating Ted in college, Karen cheated on Ted with her Philosophy professor.Character History:Relationship with Ted:Both Marshall and Lily hated Karen in the past because of her incredible pretentiousness and her tendency to bring it out in Ted. Lily admitted that she particularly hated Karen because she lingered her gaze on a nude Marshall whe...
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While dating Ted in college, Karen cheated on Ted with her Philosophy professor.Character History:Relationship with Ted:Both Marshall and Lily hated Karen in the past because of her incredible pretentiousness and her tendency to bring it out in Ted. Lily admitted that she particularly hated Karen because she lingered her gaze on a nude Marshall when she walked in on Lily doing a nude portrait of him. They also hated her because she frequently cheated on Ted.In 2009, Karen and Ted started dating again, even cheating on her boyfriend at that time with Ted, until she finds Robin's earring in Ted's bed. Later Ted discovers that Lily was responsible and has been meddling with his relationships for years. She and Ted reconcile after Lily confesses the truth to Karen. When Karen expects Ted to never see Lily again, however, he breaks up with her for good, deciding that while it doesn't matter what his friends think of his girlfriend, it does matter what his girlfriend thinks of his friends.Episode Appearances:1. Arrivederci, Fiero: Season 2 Episode 17 (Mentioned Only) 2. How I Met Everyone Else: Season 3 Episode 5 (Mentioned Only) 3. Sorry Bro: Season 4 Episode 16 (First Appearance) 4. The Front Porch: Season 4 Episode 17 5. The Rough Patch: Season 5 Episode (Flashback Only) 6. Say Cheese: Season 5 Episode 18 (Photograph and Flashback) 7. Last Words: Season 6 Episode 14 (Photograph Only) 8. Challenge Accepted: Season 6 Episode 24 (Mentioned Only)Portrayed By:Laura Prepon
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