Answer:
Squeeze me and I cry tears as red as my flesh but my heart is made of stone.
I am a portal to another world which you cannot enter. Only you can see me but I can't see you.
What is harder to catch the faster you run?
I stink in living but when dead smells good.
Open me, and you can't see me without a mirror. Close me and you can't see me at all. What am I?
I flow from the Homerβs mouth when he sees doughnuts.