puzzle over (someone or something)

puzzle over (someone or something)

To think about or consider something, usually at length. After puzzling over the experiment all day, I think I've figured out where we've gone wrong.
See also: over, puzzle

puzzle over someone or something

to consider or ponder. I can't puzzle out the mean—someone or something. Anne is a bit strange. I've spent some time puzzling over her. While I was puzzling over why she had slapped me, she did it again.
See also: over, puzzle