Evelyn exits stage right
After finding out that Tasha had made a joke of her getting head butted a few times, Evelyn did something totally unexpected for her: She walked away.
In past seasons, the slight might have caused her to jump across a table or throw a bottle of wine, but this time she started crying. After dabbing her eyes, she got up from the dinner table and left the restaurant to avoid any further discussion or offense.
In a situation where she could have easily gotten into a fight with her friends, the fact that she chose to remove herself from it shows that she has had some personal growth.