I texted Becca as I went through the subway turnstile: “You won’t believe it, but Sex and The City is back! But no Samantha, so you wouldn’t like it.” I added a grin emoji and tucked my phone in my bag. When I absent-mindedly took it out as I reached my stop, I almost dropped it in shock. For the first time since my dear friend had died five years earlier, she’d written back. “I’m…