Maybe Caroline's weakness is that she doesn't have the best of luck in love, but it's not because she's not the perf girlfriend. She just needs to find a guy who matches her obviously superior maturity levels, like Klaus. Or Stefan.
You want a love that consumes you. You want passion and adventure, and even a little danger... I want you to get everything you're looking for. But for right now, I want you to forget that this happened. Can't have people knowing I'm in town yet. Goodnight, Elena.