To link diverse sorts of audiences, Shakespeare weaves unrequited love, false love, and ill-fated love into Act I. These types of love combine to produce a primary subject centered on romantic love. Unrequited love is one of the types of love Shakespeare mentions. This love is when someone feels strong emotions for someone who doesn't return these feelings. Shakespeare also discusses true love in Act I. True love is an ideal type of love that most people strive for but few ever achieve. Those who have this perfect love don't need to prove themselves to each other - they know they are loved just by seeing each other's smiles. In addition to discussing different types of love, Shakespeare also describes various forms of love through his characters. Othello falls in love with Desdemona despite not knowing her personally. He believes she can feel his love because he sees her smile every time he looks at her handkerchief. Love makes Othello do irrational things - he murders an innocent woman because of how he feels about her. Iago causes Roderigo to believe that Olivia loves him even though she has already promised her love to Roderigo. Iago uses this information to cause trouble between them so they won't be together. Love is also discussed in Measure for Measure. The main character, Angelo, falls in love with Isabel after only knowing her for a short time.