Kourtney Kardashian and Scott Disick have been playing house since they welcomed their son, Mason, on Dec. 14, 2009. But even with new baby Penelope taking over another spare room, we shouldn't expect this couple to tie the knot anytime soon. "I'm really claustrophobic, and all my issues -- and I have a lot of them -- they all stem from this thing: I can't commit to anything," Kourtney said recently on "Jimmy Kimmel Live!" Perhaps Kourtney's claustrophobia explains why they don't sleep in the same bed at night. Kourtney and Scott admittedly sleep in different bedrooms in their shared home.