my chance to walk down the aisle

No, I'm not getting married. But I did get to walk down the aisle. Two weekends ago I went to Austin for the wedding of a longtime friend. The bride is my best friend's sister and my sister's best friend. When we were young, the four of us were back and forth between our neighboring houses. Hours were spent playing with barbies, watching movies, and making macaroni and cheese. But as we grew older, our ages and sisterly rivalries divided us into the "older sisters" and "younger sisters." The years passed and after college, we began to make time for the four of us to hang out. Too old for playing with barbies, we instead made time for drinking wine, watching movies, going to dinner, and telling secrets.
Given the unique and special bond between us, I was honored when the bride asked me to be in her house party. My duties extended beyond standing next to the guest book. I also had to walk down the aisle on the night of the rehersal. I was asked to be the bride's proxy. I said yes. Then I said, "what is a proxy?" I'm pretty sure it is a southern thing. I was told that the bride-to-be shouldn't walk down the aisle until the actually wedding. So the proxy is the person who walks down the aisle during the rehersal in place of the bride.
So I had my chance to walk down the aisle. No one said it, but I couldn't help if anyone (other than me) was thinking it. It might be the only time I actually walk down the aisle. No, this isn't some "poor me, I'm not married and I might not ever get married" post. As I walked down the aisle with the bride's dad, he asked me if I thought I would be walking down the aisle (aka getting married) soon. I told him no. Even though I was dating someone at the time, we hadn't even gotten to the boyfriend/girlfriend stage. I couldn't even fathom "I do... forever."
The aisle wasn't that long, but conversation continued long after I reached the altar. I'm turning 28 in two weeks. My life is not at all where I thought I would be 10 years ago. And that's a good thing. By not getting married out of college, I was free to move overseas. By not having children, I have been free to pursue a life that is carefree and open to possibilities. But how much longer do I want the single life? After all, marriage and kids are a whole different adventure.
I'm not saying I'm in a hurry to get married. I think maybe I'm just saying I'm finally at a point where I'm open to the possibility. But I don't see it happening anytime soon.
p.s. I'm not sure why, but the wedding made me cry.