Infidelity, or even a suspicion that a partner is being unfaithful, can lead to confusion and distance in a relationship. Obvious changes in behavior can often accompany cheating. However, sometimes, infidelity may be accompanied by subtle signs. Recognizing these signs can help one initiate communication with their partner in order to address the issues in the relationship. So, here are a few surprising signs that may indicate a partner is cheating:

1. Sudden changes in routine
While days can get busier at times, this may be a cause for concern if there is no valid explanation for such deviation. Unless the partner has clearly communicated the reasons (like work commitments) for the shift well in advance, a sudden change in daily routine may be a sign that they are secretly spending time with someone else. Here, they may suddenly start working late frequently or head out more often without a seemingly valid reason.

2. Becoming overprotective of the phone
When engaged in an affair, phones can hold proof of infidelity. So, a sign to avoid ignoring is heightened secrecy around phone use. Here, a partner may also change the way they use the phone, leading to the following signs that may become more evident over time:

– The partner is suddenly not reachable on their phone at specific times of the day.

– They have changed their phone passcode and refuse to share it.

– They are always texting or sneaking off to make or answer calls.

– They suddenly stop using shared devices.

– Their social media usage suddenly changes.

– They start clearing the browser history on their phone and the home computer.

3. Becoming emotionally distant
Emotional affection is a crucial aspect of any healthy relationship. If a partner suddenly starts becoming distant, it can be a sign of a problem in the relationship. This distance could develop if the partner becomes emotionally close with someone outside the relationship. However, stress due to external factors can also result in this change. So, if a partner seems emotionally distant, it is important to initiate a conversation with them to determine and address the cause.

4. Unexplained expenses
If there are too many unaccounted-for expenses or unfamiliar charges on credit card bills, it may indicate that a partner is spending money on someone else. For example, charges for flowers or gifts one did not receive may start appearing on the bill. Food bills that one does not recognize may also be a subtle sign. Bills mentioning hotel stays or fancy dinners may start to appear without any valid explanation. Another important red flag is when a partner refuses to show their credit card bills or turns out to have a secret credit card.

5. Additional effort in personal appearance
A sudden interest in personal appearance, a new style, or buying new clothes without a reason might be signs that a partner is trying to impress someone new. They may start to dress nicer than before or start working out more intensely. They may also start paying more attention to their grooming practices. 

6. Unexplained absences
If a partner starts seeing someone else, they may want to spend more time with the other person. This means they could become regularly unavailable and step out more often without any valid reason. They may also start making excuses for the unaccounted time, such as working long hours, weekend meetings, or frequent business trips. The partner may also be unable to make time to do things together during the weekend or holidays. So, they may become less committed to spending quality time. Even if these changes may not be brought on by infidelity, not investing enough time in the relationship can be indicative of a problem in the relationship.

7. Not sharing thoughts as often
When a partner becomes emotionally distant, they will gradually stop discussing their feelings about certain things. Also, they may stop communicating their innermost thoughts. Say a partner may suddenly stop sharing anecdotes about things that happened at work or while commuting. This may happen because they may have found a new confidant and may have started to share their thoughts with another person.

8. Indifference to issues in the relationship
Partners in a relationship often get into arguments about their differences. This is perfectly healthy as long as both take the initiative to resolve the issues. However, if a partner seems to become increasingly unbothered about the problems in the relationship, it could be a sign of cheating. While this is often misunderstood as the partner becoming more patient, the change in behavior could mean one is no longer as invested in the relationship. At times, they could be focusing their energies on someone else, so the arguments that bothered them earlier no longer seem worth the effort.

9. Disinterest in the future of the relationship
If one has started envisioning their future with someone else outside of the relationship, they will avoid any discussions about future plans or commitments with their partner, as they are no longer certain about the longevity of the relationship. However, this may not necessarily indicate cheating, as concerns about job or health could make one put off making any plans. Either way, discussing such concerns and the future of the relationship can help couples understand what to expect. Here, seeking the help of a professional through counseling is also an option to get more clarity about where the relationship is headed.