Act II scene I

Iago's purpose becomes plain; he sees that Othello and Desdemona's marriage is less than solid, and seeks to use his powers to break this marriage apart. Iago is again "honest" about his intent, but only to a person whose involvement will help him greatly. I think he feels Desdemona's undying love for Othello is juxtaposed with Iago's suspicions that his own wife Emilia is cheating on him.