What should I do with someone who’s in a unhappy marriage but like me?

what should I do with someone who’s in a unhappy marriage but likes me. I want to help her but she’s attracted to me and I can’t have her because of my complicated circumstances I thought about telling her to seek marriage counselings and reasons why she shouldn’t be attracted to me.
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1 y
She also trusts me
What should I do with someone who’s in a unhappy marriage but like me?
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