Wilson Chapman editorSpoiler Alert: Do not read if you haven’t watched Episode 5 of “Girls5Eva” Season 2, now streaming on Peacock.Although “Girls5Eva” is one of the funniest shows on television, from the beginning there’s been a tragedy underpinning Dawn (Sara Bareilles), Wickie (Renée Elise Goldsberry), Summer (Busy Phillips) and Gloria’s (Paula Pell) quest to revive the titular girl group. In flashbacks to the band’s Y2K heyday, the four are lead by Ashley (Ashley Park), a veteran girl group performer with six prior bands to her name.