Who Isabella Linton is
Isabella Linton belongs to the family at Thrushcross Grange, the sheltered house that contrasts with rough Wuthering Heights. She is romantic and naive, and her feelings for Heathcliff lead her to misjudge him.
What Isabella Linton wants
Isabella falls in love with Heathcliff after he returns wealthy, well dressed and carefully spoken. She imagines him as a hero, but he does not return her love.
Isabella Linton and the others in the story
Her brother Edgar dislikes Heathcliff and tolerates his visits only because of Catherine. Heathcliff sees Isabella as a means of wounding Edgar and gaining a claim on the Linton fortune.
Isabella elopes with Heathcliff, but marriage brings her into a cold household with a husband who despises her. Her bitter letters express regret, revealing the distance between the man she imagines and the husband she encounters.
Questions
Does Heathcliff love Isabella?
No, Heathcliff does not love her. He uses their marriage to pursue revenge and a claim on her family's wealth.
Why does Isabella marry Heathcliff?
She marries him because she falls in love with him and imagines him as a hero. Her hopes keep her from seeing his cruelty clearly.