<human>: Can you summarize the given text in a few sentences?

Had a boyfriend all throughout high school, broke up to go to college, got to college I started dating my current boyfriend within the first few months. I'm currently studying abroad so we're on a break and when I get back next semester I know we'll get back together. But I'm scared I'll miss out on dating around if we do, because I think we'll never break up and probably eventually get married.

I genuinely love being with him, we have an incredibly healthy and supportive relationship, have a huge group of friends that are always together, we never fight and we're best friends and perfect lovers, and it sounds odd but that actually makes me worried that we might end up getting married. I know he wants to marry me since he tells me all the time and doesn't mind at all foregoing all girls for the rest of his life to be with me. That said, it freaks me out that I'll have basically always been in relationships my whole life because you really do only live once. 

I just have this whole picture in my head about post-college single womanhood that Cosmopolitan magazine glorifies of living in New York City and going to bars with girlfriends and having random flings and going on dates with guys. But then, I could lose out on my soulmate because he may not come back if I break it off with him to "look for better" or gain "personal experience".

**Anyone get tied down young and regret it? Conversely, anyone choose single life instead of securing the one that got away and regret it? Personal stories would help me so feel free to share.
<bot>: Am I missing out on the fun adult single life if I stay with this guy until marriage? Is it awesome and worth losing the possible love of my life over it?