I never expected this ____ you.
Answer: Of
Explanation
Generally expect takes of.
Of is a preposition here.
Expect means توقع کرنا
I never expected this of you مجھے تم سے یہ توقع کبھی نہیں تھی۔
Both are correct, but "of" is more about the person's character, while "from" is about their actions.
"Expect something of someone" → Correct
"I never expected this of you." (Meaning: I didn’t think you could do this.)
"Expect something from someone" → Sometimes correct, but with a different meaning
"I expect honesty from you." (Meaning: I want you to be honest.)
