It looks lovely. I've always appreciated this style of headpieces instead of a veil.
However. You might be putting the carriage before the horse. When you get engaged and it's time to get married, the first thing you'll select is your wedding dress, and you'll choose all other accessories based on what works with your dress. If you have an accessory already picked out, you'll be limiting your dress choices, not just in terms of style, but also of colour. What if you want to have a veil with the dress you pick out? What if the dress isn't the precise white of the headpiece, what if it's a shade of ivory or even blush?
In short, my opinion boils down to, since you like it so much, keep it, but don't limit yourself to it when the time comes to go dress shopping.
I 100% agree with this comment. I don't think one needs to be getting married to wear a headpiece. Id just get it, try threading some flowers through it and wear it out to other occasions.