It is a known fact that Emily and Aaron have always had a physical attraction towards each other. But Hotch is married and he is loyal to his first love. Now, it makes a year that he is divorce and while being on a case the now single agents sleep together. They don't talk about it again, they will worry about it later. But later is now and they have the choice between their love or their career. The FBI-agents will need to find an in-between. ----- "-I don't regret it. Even if it wasn't professional and might be a one-time thing, I need you to know Em- that I do not regret sleeping with you. -I don't regret it either, Aaron. But let us worry about it later."