Christmas Cactus.....!!!

My Christmas cactus is blossoming very well in my glasshouse.....doing really well now on general healthy neglect...it’s anything but warm in the glasshouse even during the day...!
I’m reluctant to bring it inside yet as when I did that last year the flowers and even the unopened buds fell off...
It must have been the ‘shock’ of the change in temperature...although I left it in my hallway as it wouldn’t be as warm as other places but it was close to a radiator so maybe it was too much for it...
Pity though... can’t enjoy its lovely flowers when it’s way down in the glasshouse...!!
The extra is just a ‘closer-up’ of one of its lovely flowers...