<human>: So we've been together for just over a year. Our relationship has been entirely long distance, we met online. She's amazingly attractive, we click amazingly well, and I love her so goddamn much.

Here's the problem. We're long distance. we're teenagers. Neither of our parents know, and if they did they'd go ballistic. We might have a future together, but what am I losing? I feel like it is so much to place on something that in so many ways could go wrong. It feels like a fantasy that could never be real.

She's everything I've ever wanted in a girl, and I really don't want to have to let her go. I'm also scared of what it'll do to her. She says she loves me too. And she's said many times that i'm the only good thing that's happened to her, and besides me she has nobody to lean on. We talk literally all the time, and we've become huge parts of each other's lives. It's really hard for me to do this, because I feel like I'll regret it.
The best I can hope for is to end this amicably. I don't want her to be upset, but I know that will happen. I'll be upset, too, but I know it's for the best. I mean, there's no chance of us meeting for a long time. And especially at the age i am now, it's simply not worth it.

Please, give me some advice. I don't know how to do this, and I don't know how I'm going to handle it. It's going to be tough and I'm going to be losing a large part of my life. I don't know what to say or how to put it.

If you got this far, thanks for taking the time to read this (and thank you so much for commenting if you did)  :)

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: I think I should break up with my girlfriend, but I feel really bad about it and I'm lost as to how I should do it.