Michael's self-discipline was terrifying.
On the other hand, Monica had drunk a lot.
Brie and the best man also drank a lot with her.
Michael knew that Monica liked to drink and was sometimes even addicted to drinking.
Therefore, he was used to Monica's actions and would not be suspicious.
After dinner, Monica felt that the alcohol had somewhat gotten to her head.
Her alcohol tolerance was not bad. If she was starting to feel that, the others should not be any better.
Even so, Brie was able to remain calm while not drinking any less than her Monica.
This was probably the reason Michael kept her by his side. Brie could make up for his only flaw in socializing.
They left through the dining room.
Michael felt a little dizzy.
He did not drink much and still felt very dizzy.
Despite that, he did not suspect much because his alcohol tolerance was indeed very poor.