do you keep a secret?

been knowing that the girls i knew in sydney are not really exactly truthful to their boyfriends who are back in singapore.
i know i cant say anything what they can or cannot do in their relationships. it's different for everyone but i just feel i cant get any more closer to them.
I cant stand keeping secrets with zenith, even if it's just ranting whatever it's in my head. And so does he.
This totally works for us because this is how we get security from each other.

They would totally say they are going to sleep but after hanging up, they would head to the clubs.
I dont get it. Doesnt hiding things up makes the person even more suspicious?