What happened to my Fire King mag!

I love american retro stuff such as Fire King.
I had one for myself and I loved having coffee with it every morning.

But today, tragedy happened.
I was dripping a coffee, and coffee was leaking from the bottom.
I have no idea why, but the cup was splint in two like the picture.

The cup got too old, maybe?
I'll make a glue surgery and have him live his third life as an interior object. :)