5 Reasons Why Guys in a Serious Relationship Cheat on Their Girlfriends

5. He was drinking, and it just happened.


Some guys feel their emotions heighten when they are drinking and lose control of themselves. “It’s a typical story, but we were at a party and one thing led to another,” described a guy in his 20s. Once guys make this kind of mistake, they are likely to repeat it. If your boyfriend has acted this way before, you need to take a hard look at your relationship.