run around with
run around with (someone)
To spend a lot of time with someone. Usually said of friends. I used to run around with a whole group of kids from my school, but I only regularly see a few close friends these days.
run around with someone
to be friends with someone; to go places with regular friends. John and I were great friends. We used to run around with each other all the time. Mary ran around with Jane for about a year.