This letter suggests coming up with pet names for you and your partner. It can be serious, but is probably best used as a joke.
I think our relationship has passed the point where we are just dating. I think there's something more serious going on here, and we need to address an important issue. We need to try pet names on for size. I'm not talking about stupid ones like Pookie, Pooh-Bear or Snookums. I think we need to give this some thought and come up with some pet names that fit each of us perfectly. The ones I've thought of for you so far are <pet name #1> <pet name #2> and <pet name #3>. Run them over in your mind and let me know what you think. Let's get together soon or talk on the phone and you can tell me the names you think would work for me. This is a very important issue, and I hope you'll give it the attention it deserves.