Is she jealous of me?

Hello , I don’t know what to do ,

My mother bought an apartment in Turkey and registered the apartment in my name and my sister gave up and does not want the apartment, and after the day the apartment became mine, and after the days and months passed, my sister wanted the apartment from me and wanted if I sold it in the future she wants half the amount,,


My mom told me before I will buy apartment and register for you because you are a lone. MY sister she got husband and she got kids

At end my mom she gave it to me because I am a lonely. Before my sister rejected she doesn’t wanna be ownership with me she told my mom give the apartment to my sister she deserves that but why she changed her mind she need the half money if i sold in future!

I gave her room in my apartment when she traveled with her husband i gave her my keys to stayed whatever she wanted.

I don’t get what she wants from me 🥲
Is she jealous of me?
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