What are the speakers talking about?

W: I’ve had a letter from Aunt Celia about Cyril, father. It seems to be true about his marriage. What are we to do?
M: Cyril seems to have been behaving in a very foolish manner. He’s about done for himself, I should say.
W: Mother knows nothing about it. Will you tell her?
M: I shall tell your mother. But I shall tell her that there is nothing whatever for us to do.
W: But the marriage?
M: What in the name of conscience did he do it for?
W: Ibsen and Butler....  He has sent me a letter full of quotations I nonsense, though clever nonsense.
M: Well, if the younger generation wants to carry on its life on those lines, it’s none of our affair.
W: But isn’t it our affair, perhaps, to make them get married?
M: Why should they apply to me? Only as the head of the family—; But I’m not the head of the family. Alfred’s the head of the family. Let them apply to Alfred.
W: I think, perhaps, the best thing would be for me to go and see them.
M: I won’t have you going anywhere near them. Indeed, I don’t understand why they’ve dragged you into
W: I’ve always been friends with Cyril.
M: But did he ever tell you anything about this? As to your mother, you had better tell her the facts. She’d better know the facts before every one begins to talk about it, though why Aunt Celia thinks it necessary to come, I’m sure I don’t know. And the less talk there is the better,