A quarrel presently happened between the King of Media and Phraates of Parthia, beginning, it is said, about the division of the booty that was taken from the Romans, and creating great apprehension in the Median lest he should lose his kingdom. He sent, therefore, ambassadors to Antony, with offers of entering into a confederate war against Phraates. And Antony, full of hopes at being thus asked, as a favour, to accept that one thing, horse and archers, the want of which had hindered his beating the Parthians before, began at once to prepare for a return to Armenia, there to join the Medes on the Araxes, and begin the war afresh. But Octavia, in Rome, being desirous to see Antony, asked Caesar's leave to go to him; which he gave her, not so much, say most authors, to gratify his sister, as to obtain a fair pretence to begin the war upon her dishonourable reception. She no sooner arrived at Athens, but by letters from Antony she was informed of his new expedition, and his will that she should await him there. And, though she were much displeased, not being ignorant of the real reason of this usage, yet she wrote to him to know to what place he would be pleased she should send the things she had brought with her for his use; for she had brought clothes for his soldiers, baggage, cattle, money, and presents for his friends and officers, and two thousand chosen soldiers sumptuously armed, to form praetorian cohorts. This message was brought from Octavia to Antony by Niger, one of his friends, who added to it the praises she deserved so well. Cleopatra, feeling her rival already, as it were, at hand, was seized with fear, lest if to her noble life and her high alliance, she once could add the charm of daily habit and affectionate intercourse, she should become irresistible, and be his absolute mistress forever. So she feigned to be dying for love of Antony, bringing her body down by slender diet; when he entered the room, she fixed her eyes upon him in a rapture, and when he left, seemed to languish and half faint away. She took great pains that he should see her in tears, and, as soon as he noticed it, hastily dried them up and turned away, as if it were her wish that he should know nothing of it. All this was acting while he prepared for Media; and Cleopatra's creatures were not slow to forward the design, upbraiding Antony with his unfeeling, hard-hearted temper, thus letting a woman perish whose soul depended upon him and him alone. Octavia, it was true, was his wife, and had been married to him because it was found convenient for the affairs of her brother that it should be so, and she had the honour of the title; but Cleopatra, the sovereign queen of many nations, had been contented with the name of his mistress, nor did she shun or despise the character whilst she might see him, might live with him, and enjoy him; if she were bereaved of this, she would not survive the loss. In fine, they so melted and unmanned him that, fully believing she would die if he forsook her, he put off the war and returned to Alexandria, deferring his Median expedition until next summer, though news came of the Parthians being all in confusion with intestine disputes.
Nevertheless, he did some time after go into that country, and made an alliance with the King of Media, by marriage of a son of his by Cleopatra to the king's daughter, who was yet very young; and so returned, with his thoughts taken up about the civil war.
When Octavia returned from Athens, Caesar, who considered she had been injuriously treated, commanded her to live in a separate house;but she refused to leave the house of her husband, and entreated him, unless he had already resolved, upon other motives, to make war with Antony, that he would on her account let it alone; it would be intolerable to have it said of the two greatest commanders in the world that they had involved the Roman people in a civil war, the one out of passion for, the other out of resentment about, a woman.
And her behaviour proved her words to be sincere. She remained in Antony's house as if he were at home in it, and took the noblest and most generous care, not only of his children by her, but of those by Fulvia also. She received all the friends of Antony that came to Rome to seek office or upon any business, and did her utmost to prefer their requests to Caesar; yet this her honourable deportment did but, without her meaning it, damage the reputation of Antony; the wrong he did to such a woman made him hated. Nor was the division he made among his sons at Alexandria less unpopular; it seemed a theatrical piece of insolence and contempt of his country. For assembling the people in the exercise ground, and causing two golden thrones to be placed on a platform of silver, the one for him and the other for Cleopatra, and at their feet lower thrones for their children, he proclaimed Cleopatra Queen of Egypt, Cyprus, Libya, and Coele-Syria, and with her conjointly Caesarion, the reputed son of the former Caesar, who left Cleopatra with child. His own sons by Cleopatra were to have the style of king of kings; to Alexander he gave Armenia and Media, with Parthia, so soon as it should be overcome; to Ptolemy, Phoenicia, Syria, and Cilicia. Alexander was brought out before the people in Median costume, the tiara and upright peak, and Ptolemy, in boots and mantle and Macedonian cap done about with the diadem; for this was the habit of the successors of Alexander, as the other was of the Medes and Armenians. And as soon as they had saluted their parents, the one was received by a guard of Macedonians, the other by one of Armenians. Cleopatra was then, as at other times when she appeared in public, dressed in the habit of the goddess Isis, and gave audience to the people under the name of the New Isis.