WK 4: Why does Othello react so quickly and so strongly to Iago's manipulation?

Why does Othello react so quickly and so strongly to Iago's manipulation? Does the problem lie within Othello? Is Iago just too good at what he does or is it a combination of the two? Argue your case and justify your point of view in a well-structured and detailed paragraph. Refer to at least one theme and one positioning technique. Incorporate a quotation, preferably within the sentence and referenced correctly. Post to your blog by 8.20 Thursday morning.

Othello reacts so quickly as he is insecure and has low self-confidence in regards to matters in his private life. He reacts to Iago's manipulation about how Desdemona could be having an affair with his Lieutenant Cassio so quickly as it seems so plausible to him. Cassio is a sophisticated, educated, handsome and charming Venician man who would have been the perfect partner for Desdemona to marry,  and Othello still has doubts to why she chose him when she could have had men who were much better. Iago mentions how Desdemona deceived her father which spurs on his doubts about their relationship together. Othello himself bring up first how their relationship is unnatural, "how nature erring from itself", referencing how Desdemona would want a better partner than him as it is only natural. It is a combination of the manipulation by Iago and Othello's personal issues in his personal life which cause him to react so quickly. The themes that could be linked to Othello's reaction are jealously, deception, reputation and issues of race. Jealously is mainly shown through Othello's insecurities about the type of relationship Desdemona and Cassio share. The themes of deception and reputation are used by Desdemona beginning to have a reputation of deception after she tricked her father, this made it easier for Othello to believe Iago's manipulation of the events. Iago was able to manipulate Othello utilized his reputation for being 'honest Iago' to have Othello believed whatever Iago said was the truth and that he was looking out for in Othello's best interest. The theme of issues of race is present through out the play and is mainly present in Othello's private life, although not as much in his public life. Othello is portrayed publicly as the brave, talented, respected and courageous hero of venice. Evidence of Othello's character is demonstrated by many important political figures  including senators ,when they address him as 'valiant Othello', 'valiant moor' and the 'brave moor' (1.3.32-34).