i am 38 yrs old with 2 kids . Though we stay as a family, there is no communication between me/wife. She feels that i am not upto her level now. Doesnt share things with me . only answers in one word if asked. She might have different priorities now and i understand that she is wanting to better her life .her perspective has changed a lot. So i dont want to be pulling her back. but it takes a toll on me when there is no one to talk to. She does take very good care of the kids.
i resort to drinking /smoking due to this and this causes my wife to move away from me more. it is going on like a chain reaction.
nowadays i dont ask her anything but if she feels like sharing something i am all ears...just i dont want to go ask voluntarily because she gets mad when i do that.

what am i doing wrong? How do i handle this situation ? how do i distract myself and still stay together for the sake of kids?