confuse about (something)
To puzzle or make uncertain about something. A noun or pronoun can be used between "confuse" and "about." I wasn't trying to confuse my students about sine and cosine, but it seems that I have. I'm sorry I'm so early—I must have been confused about the party's start time.
confuse someone about something
to cause someone to be puzzled or bewildered about something. She confused me about the time of the concert. I wish you wouldn't confuse me about those things.