sounds like you just enjoy ntrI really want to see a lot more of it. But to be honest on of her charms is the whole process of getting her. its like a tide building up. You are interested in her from the beginning of the game but she is the girlfriend of your loveable but asshole best friend. You want to save her but also ravish her. So there is an anticipation for what to come. You get to know her better and when you finally there the whole build up wave is crashing and you feel pure bliss to obtain her.
I think that is what really stands out in good games. that you dont just get the nice graphics, the good writing and the ambient music. its about up and downs. building up expectations and crushing your hopes. So you really feel bliss when you archieve you goal with the LI.
Sorry for the wall of text. Just felt like giving my 50 cent about this. So long story short. Not only her but also the path to get her is extremly well made and i really enjoyed that.