If I'm allergic to my cat will I ever get used to it?
user
I think you mean “If I'm allergic to my dog will I ever get used to it?” 
The answer is that allergy means that your body doesn't tolerate the substance very well. So it will take a long time to get used to something that your body doesn't tolerate well.
assistant
So you think it's possible? No, I am allergic to a cat not a dog.
user
Oh, I'm sorry, I misunderstood! Yes, it is possible to get used to something that your body doesn't tolerate well. I'm a bit confused, are you allergic to a dog or a cat? I'll try to understand, but can you be a little more specific?
assistant
If I'm allergic to my cat will I ever get used to it?
user
I think you mean “If I'm allergic to my dog will I ever get used to it?” 
The answer is that allergy means that your body doesn't tolerate the substance very well. So it will take a long time to get used to something that your body doesn't tolerate well.
assistant
So you think it's possible? No, I am allergic to a cat not a dog.
user
I think the meaning is the same, but I was answering to your initial question which said “will I ever get used to it?” not “am I allergic to it?”.
assistant
If I'm allergic to my cat will I ever get used to it?