Totally agree with FixerMike77—great tips! 
I was just thinking the same thing: those technical quirks with iOS 17 can really throw Find My for a loop. I once had my own location drop out and reappear in a Starbucks across town, all because my phone prioritized trusted WiFi networks. Your advice to focus on the tech side in conversation is spot on. You could even troubleshoot together, like, “Let’s make sure both our settings are right—Apple’s been weird for me, too!” Keeps things light and helps solve the mystery without any stress. 