Lifetime has set the premiere date for the third season of its acclaimed series UnReal along with a trailer and a new Everlasting “suitress” for us to fawn over. The series is set to return at 10 PM Monday, February 26, and has former Masters of Sex actress Caitlin FitzGerald taking the throne of suitress Serena. Serena will have her pick of hunky, eager male suitors but also will face off with Everlasting's queen bees, producers Rachel Goldberg (Shiri Appleby) and Quinn…