Re: My wife doesn't like oral or foreplay.
Your wife doesn't like to be touched, but is happy to touch you? Your wife doesn't like you to go down on her, but is happy to go down on you? Does she orgasm? If she fakes it, could you tell?
By putting such strict limits on sex play, she is limiting her arousal, rather severely. I have to admit, Id be surprised if she orgasmed at all with you. I would not be surprised if she fakes it.
Her limitations, have they always been thus? Are they getting worse or staying the same? Lots of women take a bit of convincing before they can relax enough to allow oral and then even more convincing before they can enjoy it. So, that singular limitation is pretty common. But that combined with no touching... This isn't just a preference, no matter what she claims.
My strong hunch is that she's had a bad experience at some point. If she hasn't already told you, or hinted about it, you'll not likely get very far in trying to fix this problem in the regular way.