What word could replace "indifferent" in Jack's statement about Gwendolen's feelings?

Read the excerpt to answer the question.

“JACK: We must get married at once. There is no time to be lost.

GWENDOLEN: Married, Mr. Worthing?

JACK: Well... surely. You know that I love you, and you let me to believe, Miss Fairfax, that you were not absolutely indifferent to me.

GWENDOLEN: I adore you. But you haven't proposed to me yet. Nothing has been said at all about marriage. The subject has not even been touched on.

JACK: Well... may I propose to you now?

GWENDOLEN: I think it would be an admirable opportunity. And to spare you any possible disappointment, Mr. Worthing, I think it only fair to tell you quite frankly beforehand that I am fully determined to accept you.”

Oscar Wilde, The Importance of Being Earnest