Um, That Doesn't Go There

When F bought the house that we now call "ours", we were still just dating. Therefore, when he requested that the green and pink paisley couch come with the house, I didn't object all too much. What did I care? I had my house with it's own furniture.  Then we got engaged and I moved in.  It was shortly there after that I purchased the first "our house" item; a cover for said green and pink paisley couch.  With the cover the couch wasn't all that bad. But it had seen many a tushy and needed to be replaced. Thus began my campaign for leather recliners. F fought on this stating the couch was still fine. But then he sat in it for more than 30 minutes and SUDDENLY the need for recliners was a grand idea. This only took me a year to accomplish.
 Next came the part of trying to both agree on a pair of recliners we liked. I kid you not when I tell you this process took 6 months. Finally, Costco came to my rescue. We bought the recliners featured in their Connection Magazine, and the green and pink paisley couch made it's way to the Salvation Army.  This brought us back full circle to the question of where to place the desk top computer I'd finally gotten from work(after a 5 year wait, another story).  I have always wanted to place it in the "dining room" (really the 3rd bedroom in our house) which has a dead space corner, but F has always wavered between there and the other corner in the family room. Now with the couch gone, he feels there is enough room to place the computer in family room. Now starts our next debate.
One in which F made his argument against the dining room by saying, "But, I've always wanted that room to be a dining room with a daybed!"

*Mystified pause* "What???? Uh, you CAN NOT put a daybed in the dining room!!!"

*Blank stare* "I just don't have the mental power to have this conversation."

"Obviously."

A bed, in the dining room. A BED in the DINING ROOM. A room which is maybe 8x8 containing a table that seats 10. The dead space corner could not handle an entire daybed.
A BED. I just, how? The mental picture in my head. We have a spare room, with a queen sized bed and an extra queen mattress in the basement, plus a pull out queen sized couch in the living room. We do not need another bed. Let alone a BED in the DINING ROOM.
As for another "couch", we have 3, who needs another couch/daybed???
Really, where does he get these ideas??