I'm with you on the doughnuts. Somehow I have been able to associate doughnuts with the crappy feeling I get after eating them, so I rarely partake of that form of indulgence.
Getting back to the subject of O's. Once recently I suugested that my W and I get intimate, and her answer was, "You don't need me for that." She's right, I don't need her for an O, but of course I do need her for intimacy. Why do I need intimacy with her? Why doesn't a solo O suffice? Because of my need to give. Now, am I fretting over something she does not want to get from me? Perhaps. I don't know if she has O's with me, but I know she responds and I know she likes it at the time. How do I know? Because if she were faking she would do a more convincing job.