Work schedules can change, depending on one’s occupation, but if your partner is suddenly working longer, later, or at odd times, they could be lying. Spending less time at home and more at the office could mean your significant other is avoiding you, out of guilt of resentment, or they are meeting with their fellow adulterer to cheat either at work or elsewhere. If they fail to elaborate about why they’re working longer or later, be sure to take note.

Frequent business trips are another red flag that your significant other is being unfaithful to you. Instead of working, they may be jet-setting with someone else. Especially if they take extra time to groom right before they leave — getting a haircut, buying nice clothes, going to a tanning salon — you should definitely pay close attention to any other signs of cheating. Work is a common excuse used by cheaters to cover their tracks, so don’t be fooled!