Of course, after having a bit of a headache with the loves of his life, Vergil ended up having to actually visit Paris. After all, his goal really was to hunt down the one who had hurt Viviane...
Who was he kidding?... That man, Spectre, had really annoyed him several times. In half a year, that man had attacked Viviane, almost killing her. A few months later, one of his allies had attacked his precise friend, Alexa.
That man's ally was Alexa's own brother, who killed her entire pack for no reason. And in the same incident, a few days later... he attacked Katharina, Ada and Roxanne.
The truth? Vergil was holding back the whole time so as not to do something crazy. He was staying calm inside, but he was enduring every second he spent sorting it out. At the same time, he was controlling himself even more so as not to act rashly.