Well I guess it depends what else you would have been doing. If your alternative was to learn or play ball - then maybe. But if you didn't have anything else planned, and were going to end up watching southpark all night, then I think you actually saved yourself a lot of anguish by being here.
And yes, growing haughty can cause the lust feelings to come back. It basically is implying that one doesn't recognize how much H-shem saved him, and thinks he did it on his own. That's a fall on it's own - even if no lusting happens because of it. So it's not that the lust feelings are 'given to him as a penalty', rather the special help from H-shem (which he earned through his struggle) is removed, his original lust feelings are once again revealed, and he is thereby shown his need to rely on H-shem.
The feelings of pride are a dirty trick by the Y"H, which he employs when he sees one isn't falling for the standard ("You must watch") technique.