She liked sexy time ;)
read the poem "anne hathaway"
I do not believe there was such warning. Lady Macbeth and Macbeth were husband and wife- they were partners. No warning would be needed.
she warns her husband to disguise his fear and deceit
Lady Macbeth receives the idea that her husband should kill the king after reading a letter from Macbeth describing the witches' prophecy. The prophecy states that Macbeth will become king, leading Lady Macbeth to convince him to take action and seize the throne.
in a letter
She talks her husband into killing Duncan.
she warns her husband to disguise his fear and deceit
Lady Macbeth orders her husband to go back and smear the sleeping guards with Duncan's blood to frame them for the murder, to divert suspicion away from them.
The murder of the king.
Lady Macbeth tries to cover for her husband, Macbeth, by helping him come up with a plan to assassinate King Duncan and then framing Duncan's guards for the murder. She also tries to calm Macbeth's guilt and paranoia by assuring him that their actions are necessary for their ambitions.
Lady Macbeth learns of her husband's exploits from Macbeth himself, when he writes her a letter detailing the witches' prophecy and his subsequent actions to become king. She also witnesses his growing ambition and desires for power, which further affirm his deeds.
She plans to kill Duncan in his sleep with the help of Macbeth, who she convinces.
In Act 1, Lady Macbeth is the planner, the one who is dragging her reluctant husband into committing one murder. But by Act 4, Macbeth commits murder after murder and Lady Macbeth is the reluctant one, nauseated and consumed with guilt by the bloodshed. The roles actually reverse much earlier in the play, when Macbeth kills the grooms. That was not in Lady Macbeth's plan, and she is horrified by it.