First Love: Stories?

I was just wondering if anyone had an earth- shattering first love story? And, if so do you ever get nostalgic about that relationship? My first love was my first everything! And it went on for 7 years. I'm in a much better place in my life now and am glad that things ended between us but I sometimes wonder, "what if..." I get extremely nostalgic when thinking about what a special bond we had. I sometimes feel like I will never experience anything as intense as what I had with my first relationship because I held nothing back. I loved with my whole heart. He's married now and I'm in an awesome relationship now but just wondering what others had to share?