The girlfriend who broke up came back from a trip. Should I go to her?

Your friend's idea is right: ignore her and stick to it. Don't pester me when I meet you. If she cares about me, she will still contact me and stay with me. The more I care about her, the less she cares about me. The more I begged her not to break up, the more thorough I became. So, ignore her, girls are like that. When she feels like losing you, it's a pity that she will be worried and she will appreciate your kindness. So, cold her! ! Although we care about her, we should let her know that we are not without her.