Carolyn Hax: Girlfriend waited, and waited, then walked. How to prove you want to commit?

At first I was heartbroken, confused, angry, but in talking with friends and family, I came to realize she wanted to get married and gave me a thousand opportunities to go in that direction and I didn’t take any of them. Even though I’m 33, this was my first serious relationship, so I was inexperienced, and I admit a little immature and self-centered.