No, not for a long long time. Sometimes I get a little nostalgic, but ultimately there’s a reason why the past is in the past and I don’t want anything I had back. I’ve changed so much and those people I’ve shared fond memories with no longer fit in my life. You need to recognize that although the memories are good, there’s always a reason behind why a friendship ended and it’s important not to let that longing for the times you had cloud the reasons why things just didn’t work. By all means, feel free to disagree, but looking back is unhealthy, find a way to move forward and have something great right now instead.