So I think I just messed up, but I'm not sure?

You didn't mess up - he just wanted a hook-up. And by "textin buds" he means "sextin buds." You're better off, hunny...wait for someone who wants you for more than your dick and ***. Trust me. Hook-ups are ok for a while but when you get to the point where you want to settle down - you might have some regrets.