I take back everything I said about being okay with being “The Girlfriend.” I lied. I was never okay with it. Well, maybe never is too strong, but you get what I mean. I got used to it, but always wore that word reluctantly.
The terms we use for relationships are important: girlfriend, boyfriend, wife, lover, husband, partner, significant other, fiancee, companion, friend, &etc. Each of these words express a commitment and love, and I have on more than one occasion reckoned, as Shakespeare does in Romeo & Juliet: "What's in a name, that which we call a rose, by any other name would smell as sweet."
However, all I can say is this: There is a HUGE difference between “Girlfriend” and “Fiancée”. Reason and rational thought aside. It just feels different. I feel different.