I was mad whe i found out.
I treated this girl better then her other bfs.
Most Helpful Guy
People cheat for one reason: because they're shitty people.
To look at it a little more psychologically, people almost never actually cheat up, they sleep with someone less than the person they are in a relationship with. This is because they want to feel like they have the power, or have the upperhand in that relationship, because they want to feel like they are the better person in the relationship.