My partner jumps to defensiveness all the time. If I say something bothered me (like forgetting to pick up what u asked from the shop as a silly example) he straight away will say something like “but i didn’t mean to do that, you know I wouldn’t do that on purpose, i was insert reason here.
it is so frustrating, I’m not accusing him of doing it or purpose or meaning to or whatever else he did, i would just like him to acknowledge he should have got the stuff.
this applies to everything big or small. It really really annoys me