Love sought is good, but given unsought better Olivia is not being ironic, but there are ironies in her statement. She has refused "love . . . unsought" from Orsino, but she wants "Cesario" to accept "love . . . unsought" from her. And Viola's love for Orsino is unsought by him. Later, Viola's twin brother will show up and accept the love that Olivia felt for "Cesario." Eventually, everyone receives "love . . . unsought."