So why not be honest with her and tell her that you see her as a good friend not a date, and that you don't want to hurt her but at 17 you're interested in dating as many girls as possible and not ready to settle down.
That's what I'll do, without the 'dating as many girls as possible' part.
And about the whole 'practice run' thing - no. First of all, I can probably tell her within a few days that I'm not really too keen on the whole dating thing, I just want to be friends. That probably wouldn't be an issue, we would be back to where we were a few days ago.
If, however, I actively date her, and all that stuff, it's going to be a lot more difficult to go back.
I may not really be too interested in dating, but I do still want to be friends with her. I think I can do that, if I do it before we 'date'. I think that if we go out on a few dates, and she screams the plaster off my ceiling and whatnot, it's not gonna be able to go back to just being friends.
And, of course, I would hate myself if I dated 18, knowing full well that I only considered it a temporary practice run, while actively pursuing 23. I feel horrible about myself already, because I told 18 that I would go out with her, but I have a crush on 23.
I would just feel really dishonest dating 18, since she's not the girl I want to be dating. I don't want her thinking that we're dating, and me thinking that I'm killing some time until I can ask out 23.
I just have a really hard time decieving people. I got iffy about going over to 18's house, even though I thought that she had no intrest in me whatsoever, and even though she already had a boyfriend, and even though I had no intrest in her whatsoever, because I felt like I was being dishonest with 23.
If I start off lying to her, it's only gonna get worse and worse, until it completely falls apart. I'd rather tell her a few days after deciding to go out, but before the first date, that I'm not too keen on the whole dating thing, and she might have a small letdown. If I date her for three months, then I hit it off with 23 and I dump 18 the next day, that's going to be a major letdown for her. And if I hit it off with 23, then tell her that I don't want to because I'm already dating 18, that will be a major letdown for me.
Even taking 23 out of the equation, I don't really want to go out with 18. I don't want to start a relationship pretending that I do, because I'm eventually going to slip, or she's going to realize that I don't, and every day that goes by makes that eventual breakup tougher.
And really, what's it to her that I'm her friend and not her boyfriend? I'm still going to hang out with her. I'm still going to like her. I'm just going to skip on the whole holding hands and kissing stuff.
Right now, I feel like I'm being dishonest with both of them, and it's killing me inside. I'm sleeping rather poorly, I'm completely zoned out when I'm awake, I can't really focus on anything, I have a horrible sinking feeling in my stomach, I feel like a complete whore. I'm stumbling through my day in a complete daze, because there are two very nice girls who like me, and I'm being a complete asshole, because I don't have the balls to tell them how I feel.