That's so funny because Boyfie does this too!  He seems to like to go in and
out quite often when the doors are shut.  It seems to be a "must check round
my territory" thing.
He is appalled if he asks to go out of the back door (both cats normally
exit through this door) and finds out it's pouring with rain.  He will then
change his mind.   Two minutes later he will present himself at the front
door and ask for out to see if it's nicer out of that door ;-)
Aww, you should see his face when he discovers it's raining out there too.
He stares up into my face and meows.  He thinks I can fix everything.
As Kitty only stirs from her beanbag beside the fire during bad weather  a)
when it's mealtime  b) when she is bursting to go to the toilet  it doesn't
affect her too much.
As for b) if it proves to be raining she has been known to come straight
back inside and disappear behind the woodburner..
<sigh>

Tweed