I think it is time to put her over your knee or better yet, really pleasure her by tying her to the bed and using a vibrator on her for hours. There are some nice videos using a magic wand. I saw one where she was left for quite a while and actually passed out. She has had her fun at your expense but please 6 months. Clearly she doesn't care for you at all. I think she needs to be tested to see how important this is to her. She doesn't appear to be keeping her end of the bargin up ( unless thats what you discussed). I suspect you might be failing the "test" all women use to see if we are worthy. How about a 6 month role reversal?