Coded communications

Below are how 2 good friends talk.

A: I'm damn sad, argh....
B: What happened?

A: I just wanna whine, and I'm so saddddddddddddddddddddd....
B: I hope everything is alright.

A: What is done cannot be undone.
B: Ok, just look on the bright side k? Anyway, I'm really happy!!!

A: Why are you happy?
B: I did something that is so extra-ordinary today....

A: Tell me...
B: Gosh, I'm just so delighted.

A: Guess you are just like me dun wanna share the reason.
B: (Duh, ming zhi gu wen)

How can both good friends who usually share stuff with each other stop sharing(or at least minute details)?

Is this a sign.....???

Oh well, god has plans for us...;)