He knows that if he tries to pursue some new girl and fails, he can have you back in a heartbeat.
Dating as an institution is a relatively recent phenomenon which has mainly emerged in the last few centuries.
As holly and jolly as they may be, the holidays come with their fair share of stress.
The Mirror author, Zahra Mulroy, cites that stress as a possible reason behind the breakups.
And on Christmas Day, you're basically 100 percent golden.
(Because what sort of heathen monster would decide to breakup with you on Jesus' birthday?!