I'm fairly young and it's something that scares me deeply about marriage. How do you spend 30 years with someone, someone you once loved deeply, and come to a point where you no longer want to share your life with them.

My closest friend I've known for 10 years and we know each others intimately, it's a deep connection that can only be built with time and effort. It's without comparison to other friends that I've only known for a few years. So you spend 30 years building something so strong with a single person, there's never going to be someone else like this, you can't spend another 30 years building something with someone else, that's it. I don't know how you can deal with losing something like this.