Sorry to sound as though I'm invalidating your feelings, sacman, but at your age there's no such thing as a serious romantic relationship. The kind of lasting thing you'll find will come when you're a bit older and puberty isn't screwing with your head.
Consider this; Ten years ago you were 7, were you at all at that age what you are now in thought, reason, priorities, desires, experience, and so on? Of course not! And when you are 27, you will be nothing like you are now. In fact this is probably one of those things where you will look back and wonder what was wrong with you. The things you find appealing about her and the relationship will have, at least for you, long since changed.
I know that love and lust are easily confused, I was your age once, so I can tell you from experience that things, and you, will most certainly change. You're still very young, and this aspect of your life is still very much in transition.
Long story short, this is from beginning to end a bad idea. Strength and willpower can spare the both of you a lot of regrets. It may seem hard now, god knows it is, but the grief you'll spare the both of you will be immeasurable if you just exercise some restraint and let reason lead rather than lust. If you have to ask if this is wrong, odds are good you already know the answer.
Consider this; Ten years ago you were 7, were you at all at that age what you are now in thought, reason, priorities, desires, experience, and so on? Of course not! And when you are 27, you will be nothing like you are now. In fact this is probably one of those things where you will look back and wonder what was wrong with you. The things you find appealing about her and the relationship will have, at least for you, long since changed.
I know that love and lust are easily confused, I was your age once, so I can tell you from experience that things, and you, will most certainly change. You're still very young, and this aspect of your life is still very much in transition.
Long story short, this is from beginning to end a bad idea. Strength and willpower can spare the both of you a lot of regrets. It may seem hard now, god knows it is, but the grief you'll spare the both of you will be immeasurable if you just exercise some restraint and let reason lead rather than lust. If you have to ask if this is wrong, odds are good you already know the answer.