how strange. the exact same thing happened to me, but i was on the girlfriend end of it.
i'm going to guess that she reacted the same way i did for the same reason. she's not trying to punish you, she just thinks you're less interested in her now. send her another email, let her know exactly why you did it and just make it clear that you very much still adore her and you don't want any less of her. at least, that'd work on me
