To what extent does Isabella change once she has moved into Wuthering Heights?

Isabella has changed completely since coming to Wuthering Heights. By the time we see the woman who was once completely in love with Heathcliff in Chapter Seventeen, she is a bitter, angry, misused, miserable, and vindictive woman.

Do you have any quotes to support your idea?? Im trying to write a character profile for her

Do you think he could bear to see me grow fat and merry - could bear to think that we were tranquil, and not resolve on poisoning our comfort? Now, I have the satisfaction of being sure that he detests me, to the point of its annoying him seriously to have me within ear-shot or eyesight: I notice, when I enter his presence, the muscles of his countenance are involuntarily distorted into an expression of hatred; partly arising from his knowledge of the good causes I have to feel that sentiment for him, and partly from original aversion. It is strong enough to make me feel pretty certain that he would not chase me over England, supposing I contrived a clear escape; and therefore I must get quite away. I've recovered from my first desire to be killed by him: I'd rather he'd kill himself! He has extinguished my love effectually, and so I'm at my ease.

I gave him my heart, and he took and pinched it to death, and flung it back to me. People feel with their hearts, Ellen: and since he has destroyed mine, I have not power to feel for him: and I would not, though he groaned from this to his dying day, and wept tears of blood for Catherine! No, indeed, indeed, I wouldn't!'