<human>: Give me a shortened version of the text

I kind of came here on a whim, not sure if you guys can help but any advice would really mean a lot to me. I'm also using a throwaway account.

Long story short, I'm 18 years old, and I'm taking classes at the nearest community college to hopefully go on to a 4 year college within the next year (I'm currently living with my parents, who are otherwise extremely trusting and relaxed). Anyway, the only thing we don't see eye to eye on is my girlfriend. We've known each other since we were little and actually used to be family friends, but we lost touch and only started talking again about May of last year. Anyway, the issue is that she's only 16 years old, (we're about a year and 9 months in age difference). She also goes to the local high school, that I graduated from last year. Furthermore, we've been on and off for quite a while and up until recently I realized how awesome she is. We've also gotten really serious as a couple. She's on a whole different level than most girls in my town, and I have no doubts that we could have a really special relationship. What really sucks is that my parents couldn't be happier that I found a girlfriend, but they think it's "unhealthy", "unproductive, and a "step back" because of the age difference. (They don't want me being that college kid who still hangs around high school kids, which I have no intention of doing, except for hanging with her). What they don't realize is that I've had my fair share of girls and all of them DON'T compare in the slightest. I tried talking to them about it last night and the consensus was that I could obviously do what I want, but I can't bare to bring her over or be involved with her knowing my parents don't support it. 

I know this is long but I'm hoping you geniuses could put together a good game plan for me. I just need a way to show my parents that what me and my girlfriend have is real, despite the age difference. 
I plan on having a formal discussion with them about me and her within the next 24/48 hours.
<bot>: Found an awesome chick who is [16] and I'm [18], my parents don't fully support the relationship because they think the age difference is too great.