Tush! never tell me; I take it much unkindly
That thou, Iago, who hast had my purse
As if the strings were thine, shouldst know of this.
'Sblood, but you will not hear me:
If ever I did dream of such a matter, Abhor me. (1.1)
Based on the opening lines from Othello, what can you infer about the relationship between Iago and Roderigo?