Analyze the phrase "Life has got to go on." (scene 11)

Stella repetitively suggests that is she believed Blanche's accusations about her husband she couldn't go on living with him. In my opinion, Stella has some doubts..... and so does Eunice. None-the-less, it seems as if Eunice isn't encouraging her friends doubts, but rather telling her that she needs to hang in there, “Don’t ever believe it. Life has got to go on. No matter what happens, you’ve got to keep on going”