I am right there with Seamus. I hate NRE. I make stupid decisions, but I don't seem to be able to stop myself. I take risks I know I wouldn't otherwise take. My emotions are more labile. I get anxious. I'll cry over small insecurities. I'll worry I've said the wrong thing in my eagerness, or give the wrong impression.
Yes, there are good parts of NRE, too, but I much prefer being relaxed and happy in my relationships. Once the NRE is done, I love the feeling of contentment as a couple. I enjoy most the part of a relationship where instead of going on dates and explaining ourselves to each other, we are entwined on the couch in pajamas doing crossword puzzles. Where we know each other well enough that small mistakes don't matter and trust in innate. That's where I want to be.
I don't go looking for NRE, I always just hope to survive it.