if you count bloodborne , i would have to say that is the best souls game <| sep |> That ' s an even grosser over simplification . There ' s a whole host of reasons why people do it , just as why there are often a whole host of reasons a relationship can be disfunctional . Some people love someone but have deep seated things about their end of the relationship that are unfulfilled for them . Some would rather be the bad guy and a cheater than admit to someone who loves them , that they no longer love them back . And some people just don ' t care about their so . It ' s an area I think people are poorly served by dismissing motivations quickly . If you boil it down to people only cheat if they ' re shitty then you may never realised or know when to sit down and chat about the things that could drive you or your SO to be unfaithful .