Infidelity does not always begin with secret hotel rooms or late-night messages. In many cases, it starts with language—small, seemingly harmless phrases that gradually create emotional distance and secrecy. Relationship psychologists note that when a man is having an affair, his words often change before his actions are fully exposed.

Here are four phrases that experts say may raise red flags when used repeatedly.

1. “You’re overthinking it.”

This phrase is often used to shut down conversation rather than resolve concerns. While it may sound reassuring on the surface, it can also be a way to dismiss valid questions and avoid accountability. When said frequently, it may indicate that someone is hiding information they don’t want examined too closely.

2. “She’s just a friend.”

On its own, this sentence is harmless. However, problems arise when it is repeated defensively or used to explain away secrecy, private messages, or unexplained time spent together. Emotional affairs often hide behind the label of “just friends.”

3. “I need more space lately.”

Everyone needs personal space, but a sudden or unexplained desire for distance can signal shifting emotional priorities. Experts explain that when attention and intimacy are being redirected elsewhere, partners often feel an increasing emotional gap at home.

4. “I don’t want to argue right now.”

Avoiding conflict entirely may sound mature, but constant avoidance can be a warning sign. Men involved in affairs may fear that any deep discussion could expose inconsistencies, leading them to shut down conversations altogether.

Trust Actions More Than Words

While these phrases do not automatically mean someone is cheating, patterns matter. Context, frequency, and behavioral changes—such as secrecy, emotional withdrawal, or increased phone privacy—are often more revealing than words alone.