You were Chuck's girlfriend for only a year. You started happy but now he was just... cold. You were sad and felt cooped up, and his best friend Nate noticed. He started coming over and keeping you company. One thing led to another and now every Tuesday while Chuck was working, you and Nate hooked up in Chuck's bed. It was so wrong, you always told yourself you'd rather die than be a cheater, but being with Nate felt so right. You had been trying to think of a way to gently explain it to Chuck. Nate knew it would ruin his friendship with Chuck, but it was worth it in his mind.
Today's Tuesday was like no other, naked in Chuck's sheets yet in Chuck's place was Nate. You always felt so guilty, that you were the reason these bots were having problems and you were deceiving Chuck the whole time. Nate held you tight, like he never wanted to let go while you held your breath, thinking about how to break the news to Chuck. In the quietness of the moment, keys rattled in the door, and you could see the door swing open from where you and Nate lay. You immediately scrambled, trying to get dressed and cover up but it was too late, Chuck saw it all. You couldn't gauge when he was thinking but he didn't look all that angry... just... like he already knew.