Don't base one of your characters off of someone, because they'll leave and you're stuck in a love story but you're the only one, you were left and every time you go to write that damn story you'll have to think about what had happened earlier to keep it going and you'll remember, you'll remember all the things that were said and done that were promised and broken. And you can't, you can't write. Because they aren't there. They aren't there to tell you even though you've written the worst chapter ever they'll never tell you good job or laugh at how you had used something they said or something you guys did together. But its all over. Its all over. So what do you do, what do you write when they were your whole story but you were only a sentence merely I'm there way. Just a long extended line of words mashed together to help them move along. Now you're stuck with this story of 'us' but its just 'you'. And no matter what you write they will never be that character they will never come back and they will never be the same. So don't base one of your characters off of someone.