Cats are predators...snakes are predators too, but not all are created equal. Your BP is NO match for a cat...therefore, it's up to you to make SURE your snake is safe
from the cat.
You didn't mention what kind of enclosure your snake is in: there have been cases where cats have knocked over snake cages to get to them. Even IF they cannot get in,
& the snake survives the crash unharmed, the stress is not fair to your snake. Some cats have jumped onto screen tops & broken thru to the pets inside.It's up to YOU
to keep your snake (& any other pets) 100% SAFE from this cat or any other pets you take on in the future. If you cannot, then do the right thing & decide which ONE to
keep & re-home the other before something bad happens.
Cats are not stupid...they may pretend not to care about other animals as long as you're home, but the mischief begins when you're gone or asleep. Don't be fooled...