Final answer:
Iago's relationship with Roderigo in Shakespeare's play is manipulative and controlling, with Iago being in the position of power. Roderigo trusts Iago and is led to believe that his assistance will help win Desdemona's love, but Iago only uses Roderigo to further his own schemes.
Step-by-step explanation:
In William Shakespeare's play, Iago's relationship with Roderigo is manipulative and controlling. Iago uses Roderigo's love for Desdemona and his wealth to further his own plans. Throughout the play, Iago is the character who seems to be more “in control” as he persuades Roderigo to participate in his schemes against Othello and Cassio. Roderigo trusts Iago and repeatedly gives him money to “buy” Desdemona's love, showcasing Iago's ability to exploit Roderigo's weaknesses.
Roderigo is the puppet, and Iago is the puppeteer in their dynamic. Iago cleverly manipulates situations and plays on Roderigo's emotions, making him believe that he could win Desdemona's heart with Iago's help. However, in reality, Iago has no intention of helping Roderigo and is only using him as a means to an end. Iago's control over Roderigo is indicative of his overall role as the main manipulator in the tragedy, manipulating not just Roderigo but other characters as well.