my Better Half ... understood it instantly and perfectly.
The point, which I think has escaped you before, is that this is a learner of English who has asked whether a phrase is correct English.
Many things said in broken or bad English can be quickly understood by native speakers. If someone said or wrote "The lake is much wide and his water is big deep", yes, we would probably get what they meant without too much trouble, but that person would rightly get it marked as wrong in a school test. Just saying "it sounds OK" is very bad advice therefore.