Thats the same reason I originally built mine too. She stayed in the house for a year & a half after the divorce. After that I moved back in but it was empty, & I mean echo chamber empty. They say home is where the heart is & my heart is in the streamliner, so we moved in together.
Streamliner guys have to be able to put 10lb's of crap in a 5lb bag. The tree house is 300sq ft with everything including a laundry, a great mountain view & a ladder.
Sid.