Well we'll just have to agree to disagree on this one I guess because as far as I'm seeing.. He's 19 for goodness sakes. He's not "too old" at all to be playing seduction games and I've already said it twice now... I think he was wrong in his expectations.
... and I still think he should stop spoiling her with gifts in order to get her to forgive him, find someone more on the same sexual page as himself and quit trying with this one. She's only 17 and not ready for anything else but oral (which as I've said before makes no sense to me whatsoever). The Catholic school girls in my day did this kind of thing in order to circumvent some religious law. It didn't make them any more chaste then the ones that were having intercourse in most guys eyes.