RELATED STORIES First things first: You would have to be one seriously hardhearted bastard not to love The Thing About Harry, Freeform’s belated gay Valentine (premiering Saturday, Feb. 15, at 8/7c). Its leads — Grey’s Anatomy’s Schmitt, Jake Borelli, and newcomer Niko Terho — have chemistry for days. The script, co-written by director and co-star Peter