why do men cheat while women are honest to them? i don't understand that?

Both male and female cheat on each other, it's not just female as I myself have cheated way too many times (When I was younger and didn't understand the meaning of love so went ahead breaking hearts)
People who cheat are immature,sex loving, sex needing, sex craving or just people who are in that mood at the wrong time. People cheat for many different reasons so many reason I can't explain. Don't let it get you down, if you truly love them and they truly love you, they wouldn't have cheated in the first place and it's your choice to forgive them if you think they're truly worth it.