Right. But I do wonder if their tryst (around 2 pm on Saturday) wasn't suddenly stopped (perhaps that happened all the time? That's kind of how I picture it). So he goes back to more neutral topics - and still doesn't hear from her. Too bad they hadn't downloaded the FindFriends app or similar where you can grant permission to friends to see your cell phone position - he could have used that to at least see what was up (not just this time, but occasionally, when he didn't hear from her for quite some time).
I think it's possible that they had been interrupted mid-convo many times, because Barry was constantly and intrusively popping in and out (because he suspected Suzanne, IMO). In that case, JL did what he could and tried to be patient.
But after 48 hours (unless it was common for them to go that long without any communication - which is possible), I'd type my beloved's name into news.google.com, for sure. Especially if I was having an affair and didn't have any other way of figuring out where they might be. After 72 hours, I would think almost anyone would do that - but, then, I hang out with people focused on crime. I don't believe him if he says he didn't wipe his phone until about 10-12 days later. This case made national headlines (I'd have to go look up when, but the FBI involvement and the case made both national and international headlines by about a week).
If it is true he didn't hear about it until 10-12 days later, and then deleted things and turned in his phone for a new one, he definitely may have destroyed evidence. She was, by then, a missing person and it was a criminal investigation...
(I'm sorry that I"m so hard on JL - I'm trying to get over it, talking to you helps).