I don't mind sharing space, but not machines. my granddaughter recently made her first quilt while I was working on one. I rescued her a free machine so she had her own - not that I don't have five others. My son says she can't bring it home until it jams and she knows how to unjam it. Because she used enders and leaders, it never jammed. She also had her own design wall. We did share mats and cutters - sort of. At one point I ended up in the kitchen using the freezer top.
I think it's great that your husband wants to join you.