Is it wrong of me to get depressed and sad because he hasn't proposed to me yet? We've talked about…

Is it wrong of me to get depressed and sad because he hasn't proposed to me yet? We've talked about marriage and I've made it clear I prefer cubic zirconia instead of diamonds..I just want to have his last name and be able to call myself his wife instead of his girlfriend..I'm so much more than just a girlfriend...idk what to do