perinjo via Getty Images Parents' lives sometimes revolve around their kids. Here's how to make sure friendships stay a priority, too. Friendships between parents and their child-free friends can be tricky. The parent friend may feel guilt for frequently bowing out of get-togethers, while also really wishing their child-free friend could understand the new challenges in their lives: the sleepless nights, the temper tantrums, the ups and mostly downs of remote learning, if the kids are older. In the other corner, the kid-free friend often feels left in the lurch, disappointed by cancelled pl...