Learn what "have you been seeing him behind my back" means, when people say it, and how to use it naturally in English.

This means the speaker suspects secret dating or meetings and is accusing the other person of hiding it.
From Good For Him, Episode 21
He suspects someone may be secretly seeing another person.
Use it in relationship conflict when you think someone has been dishonest. It sounds accusatory and emotionally loaded.
Scenes unlock real expressions as you watch
Tap to translate or use dual subtitles
Practice immediately with AI Characters
Reinforce with quick quizzes and repetition
Build speaking confidence with drama-based context, instant explanations, and AI-powered practice tailored to real conversations.
Start learning