When Algernon goes to meet Cecily for the first time, he confesses an undying love for her and proposes on the spot. Cecily laughs and calls him a silly man for they have been engaged for almost three months. She produces a number of letters, signed by his name, that talk extensively about their engagement. They even go into a temporary termination of the engagement that was quickly resolved. Whatever type of love they have for each other they both state that that is the cause of their union. .
.
The other pair is Jack and Gwendolyn. These two are in about the same boat as Jack and Gwendolyn. They both state that their reason for marriage is also love. They have known each other for a bit longer, however, so their marriage might seem a bit more acceptable. They do meet with resistance in the form of Lady Bracknell. She is Gwendolyn's mother and she does not approve of the marriage on the grounds of Jack's background. "To lose one parent, Mr. Worthing, may be regarded as a misfortune; to lose both looks like carelessness." She find Jack's upbringing to be inferior and not worthy of her daughter's hand. This is hardly a romantic conception.
.
Another view that Oscar Wilde takes in The Importance of Being Earnest is that the trappings or practices surrounding marriage were silly. A way to control the "emotional" urging of couples who might have felt love but whose marriage would not fit into the social plans of the heads of the families was the custom of requiring that permission be granted for a marriage. When Jack decides he would like to marry Gwendolyn, Lady Bracknell does not approve and will not give her permission. So, to get some revenge, Jack will not allow Algernon to marry Cecily. This all shows how Oscar Wilde felt that the "practical" customs surrounding marriage at the time were silly.
.
Still another view of marriage customs of the time being ridiculous was the class limits on who someone can marry.