It's good to tell someone the truth.
Greg got fired from his job today and his girlfriend notices he seems different.
Greg wants to avoid talking about what really happened.
Greg tells his girlfriend that he's had a really bad day and doesn't want to talk about it.
Greg pretends that there is nothing wrong when his girlfriend asks him about it.
Greg's girlfriend is concerned but mostly sympathetic and gives him space.
Greg's girlfriend begins to think he is keeping secrets from her.