Actually, believe it or not, it might NOT be your wife being manipulative. I used to have an uncle that talked the way I think you're describing----he would say, something like: "Boy, this sandwich sure would go-down alot smoother, if I had something to drink". That was HIS way of asking my aunt, for a beverage!! LOL The thing, IS, it was ALSO his way of asking, like, "gently"----so he wouldn't come-across as demanding, or come-across like he was ordering her, to do something. Don't get me wrong, I've TOTALLY seen people say things, this way, who WERE being manipulative----but, I'm just saying, there might be another reason.
I think we ASDers can be a little touchy, in this regard, sometimes (totally understandable, cuz I used to be, the same way)----no.1, cuz we've been "had", so many times (meaning, people really WERE playin' us); and, no.2, cuz we can be a little resentful, at times, I think, cuz we've asked people, point-blank, to talk to us, straight-up, and they continue to NOT do it----and, we wanna know why WE have to conform, but THEY don't; but, here's the thing..... NO NT, generally speaking, is gonna believe that we want someone to ONLY tell us things, straight-up, because THEY wouldn't want anyone doing that (NOT ALL NTs are like this)----so, when we tell them that we want to be told things, that way, they think we really don't mean it, so they continue the way they've always said things.
I HAVE had some success in attaching a rather "fierce" emotion, to when people do this----like, I might laugh and say: "Do you know how stupid you sound, when you don't ask things, point-blank?". LOL 'Course I would suggest being VERY selective regarding the person to whom you say this----or, at least, the MOOD of the person----but, it CAN help the situation, sometimes, cuz it "smacks" someone in the face (not literal), because they may not even be aware, of how they're comin'-across.
Another suggestion, would be: "No, I'm not gonna vacuum (or whatever), until you ask me, straight-up!!"----again, IMO, this "smacks" them in the face, and you can continue this way, until they oblige you.
Also, I feel it needs to be noted that when we don't tell THEM, straight-up, that we don't like it (and, WHY), and don't tell them the way we prefer to be asked, we're not any better than THEM, cuz we're doing the same thing THEY are!!
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White female; age 59; diagnosed Aspie.
I use caps for emphasis----I'm NOT angry or shouting. I use caps like others use italics, underline, or bold.
"What we know is a drop; what we don't know, is an ocean." (Sir Isaac Newton)