Johnny Mac tells Vanessa to tone down the tears.
Vanessa initially approached Johnny Mac to suss out whether she should invite him into her alliance, but the rock-star dentist didn't give her the answer she expected. Instead, he said he's had enough of her dramatic outburts and he doesn't like it when she cries and "yells at people."
Needless to say, the criticism was not well received.
Looks like Johnny Mac is done sparing other people's feelings. So watch out, Houseguests, because it's no more Mr. Nice Dentist.