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n.
a positive feeling of liking; "he had trouble expressing the affection he felt"; "the child won everyone's heart"; "the warmness of his welcome made us feel right at home"
n.
an unexpected and inexplicable change in something (in a situation or a person's behavior, etc.); "the vagaries of the weather"; "his wealth fluctuates with the vagaries of the stock market"; "he has dealt with human vagaries for many years"