I know it doesn't show the latest in the beginning of the list anymore. It's neither an alphabetical order. I've read it could be the most interacted with (by the account owner) at the top but I checked it with my account from a friend's account and at the top there were people I didn't know I followed lol

There's a girl who I kinda worry about because my bf is on her close friends list and he didn't want to tell me who she is, how do they know each other and since this conversation, she's almost on the top on his followings list (after our mutual followers). Could it be that they talked about me (possibly about me asking about her) and now she started checking out my account so Instagram "suggests" me hers account?