tracking my husband EDIT

How well does the iPhone Find My Phone tracking work ? Last night I activated my husbands so that he'll share his location with me. Well he says he's at work but his location thing says he's in forth worth st 😂😂 who am I kidding he's cheating right ? He's got to or is he gay or is he doing weed ? 
EDIT: there's a reason as to why I'm tracking him. Because Talking to him & asking him haven't worked. Soo to you ladies telling me to stop making assumptions, what would y'all do when he's lied multiple times ? Now, divorce and separating is in my mind but I'd like to fix things and not just leave. Thanks to all the others who understand :) xoxo