MAKE HIM BEG TO HAVE YOU BACK

He thinks he's gotten away, doesn't he? Thinks he can just walk/stroll/saunter away relationship without a second glance. But you, my friend, are not some doormat/pushover/victim. He made his mistake/error/faux pas, and now it's time for him to realize/understand/acknowledge the gravity of his actions. You're going to make him crave/yearn/long for