10 Ways to Tell if Someone is Cheating on You

Showers as soon as he comes home

Granted, if he just came from the gym or played some sweat-heavy sport, by all means, shower away. But it's when he is "stuck at work" for 14 hours after a long day of meetings that went into the night and doesn't want you to smell the alcohol on his breath and the perfumey scent that isn't yours wafting from his shirt, then that's a problem.