As someone who is in a relationship, I constantly try to hope that I'm good enough for it to continue, but I try to keep my mind open that I'm just one person who might not necessarily authoritatively deserve the exclusive compassion and attention of my partner — there are so many better people than me out there and if my partner were to find someone else who was mutually attracted to them, I'd hope that I could gracefully get the hell out of the way, even if that isn't necessarily to my benefit.
I haven't seen The Office in a long time but I'm pretty sure Pam's ex prior to Jim was kind of a douchebag?
If I'm that douchebag to my partner, I hope they could move on and find someone better. Right now, I'm fairly confident that's not the case but I realize I'm not perfect, even if I try. And as mentioned, I'm fairly certain I'm outclassed by so many people in the world in terms of attractiveness and relationship skills.