It is not accurate or fair to generalize about the beliefs or motivations of all people who cheat, as everyone is different and may have different reasons for their actions.
Some people who cheat may have a cynical or negative view of relationships and may believe that cheating is common or acceptable, while others may cheat despite having a positive or optimistic view of relationships.
There are many potential reasons why someone might cheat, and these can vary depending on the individual and the circumstances. Some common reasons why people cheat include feeling unfulfilled or unhappy in their current relationship, seeking novelty or excitement, experiencing a lack of emotional or physical connection with their partner, or feeling neglected or unappreciated in their relationship.
Ultimately, it is important to remember that trust and communication are key components of any healthy relationship, and it is important for both partners to be open and honest with each other.
If you are in a relationship and you are concerned about the possibility of cheating, it is important to communicate openly and honestly with your partner about your concerns and to discuss any boundaries or expectations you may have.
It may also be helpful to seek the guidance of a trusted friend or a therapist to help you work through your concerns and to find a resolution.