Allergies occur when your body’s immune system mistakenly treats substances as dangerous to your body, causing your body to react. Strangely, it’s possible to develop allergies later in life or even lose allergies later in life.
That means it’s possible to become allergic to your cat. Naturally if this happens, you’ll have to live outside while the cat lives inside where it’s safe and warm. Therefore, just make sure your cat always comes first and at least your cat will be happy.