Here is a definition of the word "blush":
blush - develop a pink tinge in the face from embarrassment or shame.
If I understand right "from" is a preposition that signifies the reason of the process and we can substitute it with "because of" as an example.
Well, if it so, can I say the next... Would it be right?
I bought a new phone from I lost my old.
I've stayed at home from the rain
I have good marks at school from my passionating of studying
It's so unnatural, Is it right?