My Thoughts

[Foresight]

I'm used to my parents separating pretty much now, and her parents are separated, too, which helps.
I talked to her about it before, and she said she would think about it later, but she
wont change her mind. My dad doesn't care about that, and he would do that, but he and my mom
still talk, and they both always agree on everything before they do anything.

Oh, so either way your mom would have to approve because your dad would relay that to your mom right? Well, in that case it's good that you brought that up, remember to push on it every once in a while, and to be persuasive. Also it's good that the girls parents are separated as well, because not only is not a commonality that you two share, but a relationship typically lasts longer and is stronger if the people in the relationship have a similar family background, or share common pains and experiences.