CHARACTER INSIGHTS
In his Saint Helena Journal entry for January 8 1816 Gaspard writes:
"Mr. Porteous brings Rosebud to lunch. Madame Montholon, who believes Rosebud to be His Majesty's mistress, flatters her intensely, takes her arm. The emperor goes into the garden, meets them, talks to Mr. Porteous, and declares that Madame Walewska [Napoleon's Polish mistress] is much more beautiful than Rosebud. He orders me to harness the horses to take the ladies back, [where?] and I am to accompany them. On the ladies' return, His Majesty salutes them, and we observe that Madam Montholon is no longer the same to Rosebud, since she sees that His Majesty doesn't find her so beautiful after all!"
What to make of this? The main point Gaspard is attempting to make is that Madame Montholon is a shameless sycophant who will do anything she can to ingratiate herself with Napoleon.
Was Rosebud present when Napoleon made the unflattering comments about her to Porteous? Madame Montholon presumably was present unless Porteous relayed the comments to her which seems unlikely. What is certain is that this diary entry is further evidence of the feuding and back stabbing that went on among members of Napoleon's entourage. As far as Rosebud was concerned even if she was present when Napoleon was downgrading her beauty, it might have been flattering to her, a poor Yamstock, to be compared with a beautiful Polish countess.
My guess is that she was present and that this is another example of Napoleon's addiction to a kind of aggressive teasing that came very close to bullying.