Orlando Bloom is one lucky guy: His ex-wife, Miranda Kerr, and fiancée, Katy Perry, actually like each other! “I really respect her,” Kerr told Us at the launch of her Kora Organics Noni Night AHA Resurfacing Serum in L.A. on Jan. 30. “We’ve gotten along since day one.” In fact, the Aussie model, 36 — who split from the English actor, 43, in 2013 and married Snapchat CEO Evan Spiegel, 29, in 2017 — considers Perry “her family,” she says. “We appreciate each other.” That’s no doubt in part because Flynn, Kerr’s 9-year-old son with Bloom, will make the singer a stepmom when she and her fiancé tie the knot. “[It’s] definitely matured me,” Perry, 35, says about parenting. “I guess this is adulting.” (Kerr and Spiegel are also parents…