I don't know what to do ... my girlfriend of three years told me she really has no interest to ever get married. Happy Valentine's Day. I feel like I've wasted a lot of time, effort, money, and emotion. I'm not worth it.
I'd ditch her if she never wants to get married and you can't change her mind later on. Personally I'd find someone else who takes you seriously and would go even further. It's ultimately up to you though; good luck, and sorry about your Valentine's day.