Partner and I so resemble this. Nearly 20 years together, and we still frequently have discussions where each of us has agreed to the other person's suggestion, so sure that was what we are going to do. And I haven't trained them out of just dumping things from their side of the bed on to mine when they sit down to read their book -- even if the objects are their things, and they put them there!

...I really hope this doesn't mean that partner is expecting me to declutter things that are their responsibility.