Hi LL, I directed you to the article on marriagebuilders.com because I thought you could use the section of the Man's house and how the wife wants not to be just one room in the house but to be involved in all the rooms. Let him read that part of the article. Maybe it will help him understand your POV, by using a different anology.
Most of all you need to find a way to build a bridge over the communication gap. Not being an "engineer" by trade, it can be hard to figure out how to build that bridge. Those DB coaches are the "engineer" that could help you find a way to build that bridge.