Well once you're out of high school and you're driving, you start meeting people from other areas.
You're out of high school. The "rep" doesn't matter anymore. You can be anything you want to be. A lot of people change when they get out of school.
Work on
inner game.
And you're stereotyping guys who work out as "steroid alpha males". What matters now is having fun in the summer, and what everyone is planning to do in the fall.
When someone wants to bring up stuff from high school, keep in mind whether it's yesterday or last year, it's in the past and irrelevant to who you are now. You're not going to see them every day. They're more likely to end friendships they had in school and make new friends, usually people in school, at work, people from different areas that they wind up becoming good friends with.