1. The first time you hang out one-on-one (and yes, Netflixing counts). Nothing is more exciting than letting out all your pent-up crush energy on a first date. It's almost as big a deal as your potential wedding day in terms of stories you'll have to tell over and over. PRO TIP: Don't bring up potential weddings on the first date. 2. That first awkward, nervous pause right before your first kiss. Your first kiss says, "I like hanging out with you, but I also want to make out with you all the time. Let's take this to the next level." 3. The first time you bone. Well, hopefully your first time was a great moment. And if not, you're a very selfless person for sticking with them. 4. The first time you stay the night instead of abruptly peacing-out like Cinderella the second it hits 2 a.m. Especially if you usually run off into the night immediately after coitus. Well, maybe hobble into the night while tryin...