Most Helpful Guy
This depends a lot on how long you were together, and how close you were.
Best friends who have been dating for 6 years and living together for 2 would require different advice than somebody you met at a party last weekend and went to the movies with once mid-week.
Why is he doing it? You answered yourself - he's trying to get sympathy. He is feeling shitty, and hopes that by expressing that, and embellishing a little, he might be able to 'give him a second chance'. Which is never a good idea, and just makes the guy learn that pouting and self-deprecation will cause a strong enough guilt trip to get his way.
What do you do? That's where I would need the extra info, really. How long have you known him? How close are you? Will you be seeing him every day in classes, or at work, or is he on the other side of the city somewhere?
Most Helpful Girl
Tell him the truth; you want space. If he really cares, he'll give you room to breath.