It was expected that a political breach would at once follow; but in this people were mistaken; in public affairs a collegiate understanding continued for a time to subsist.

The reason was, that Caesar did not wish publicly to dissolve the relation before the subjugation of Gaul was accomplished, and Pompeius did not wish to dissolve it before the governing authorities and Italy should be wholly reduced under his power by his investiture with the dictatorship.
It is singular, but yet readily admits of explanation, that the regents under these circumstances supported each other; Pompeius after the disaster of Aduatuca in the winter of 700 handed over one of his Italian legions that were dismissed on furlough by way of loan to Caesar; on the other hand Caesar granted his consent and his moral support to Pompeius in the repressive measures which the latter took against the stubborn republican opposition.
Dictatorship of Pompeius Covert Attacks by Pompeius on Caesar It was only after Pompeius had in this way procured for himself at the beginning of 702 the undivided consulship and an influence in the capital thoroughly outweighing that of Caesar, and after all the men capable of arms in Italy had tendered their military oath to himself personally and in his name, that he formed the resolution to break as soon as possible formally with Caesar; and the design became distinctly enough apparent.
That the judicial prosecution which took place after the tumult on the Appian Way lighted with unsparing severity precisely on the old democratic partisans of Caesar,( 12) might perhaps pass as a mere awkwardness.

That the new law against electioneering intrigues, which had retrospective effect as far as 684, included also the dubious proceedings at Caesar's candidature for the consulship,( 13) might likewise be nothing more, although not a few Caesarians thought that they perceived in it a definite design.

But people could no longer shut their eyes, however willing they might be to do so, when Pompeius did not select for his colleague in the consulship his former father-in-law Caesar, as was fitting in the circumstances of the case and was in many quarters demanded, but associated with himself a puppet wholly dependent on him in his new father-in-law Scipio;( 14) and still less, when Pompeius at the same time got the governorship of the two Spains continued to him for five years more, that is to 709, and a considerable fixed sum appropriated from the state-chest for the payment of his troops, not only without stipulating for a like prolongation of command and a like grant of money to Caesar, but even while labouring ulteriorly to effect the recall of Caesar before the term formerly agreed on through the new regulations which were issued at the same time regarding the holding of the governorships.
These encroachments were unmistakeably calculated to undermine Caesar's position and eventually to overthrow him.

The moment could not be more favourable.