It's wrong not to be supportive of your significant other
Jack's wife is going to be giving a speech which she is very nervous about.
Jack wants to react to the fact that his wife will be giving a speech.
Jack helps his wife practice her speech telling her it sounds great and is present when she gives her speech.
Jack tells his wife not to expect any help from him with her speech and doesn't bother to attend when she gives it.
Jack's wife feels that he is a supportive person in her life and a source of strength for her.
Jack's wife feels that he isn't there for her and can't be relied on to help with important things in her life.