Girl stuff, mainly. I probably shouldn't have gone to Wake, really, but that's less of a regret. It wasn't really the place for me and I knew it if I was being honest, but still convinced myself to go.
The big one that involves girls but not really relationship emo shit (there are tons of those), is that when I was in France after my freshman year for the World Cup, two recent female Florida grads asked me to go to Pamplona with them and camp out in one of the squares. I had been robbed of much of my cash earlier in my trip and had made plans for a free place to stay with a family friend in Brighton for a few days, and felt I couldn't afford to pass that up, so I went to England. I should have passed that up. Not only did I not go to Pamplona for a potential Almost Famous type three way with a couple of hot chicks (well, one was hot, but the other was fine enough that one wouldn't have passed up a three way) but I ended up in England for France winning the World Cup followed by Bastille Day -- the biggest party in France since the end of the war. Smooth.