The reason why Vox and Velvet get along quite well is that they are both up-to-date with the latest trends and technology. Faustisse has stated they are best friends alongside Valentino. On one of Valentino’s Instagram posts, she refers to him and Vox as her dads, which further supports the idea that the two are romantically involved.
Faustisse has stated they are best friends alongside Velvet.  Although the two appear to be on good terms, they tend to get into fights every so often as shown in the their Instagram posts. In one of his Instagram posts’ comments, Velvet refers to him and Vox as her dads, which further supports the ides that the two are romantically involved.
According to Vivziepop, the two don't get along in the slightest due to their different views and preferences when it comes to technology. The two are yet to interact in the series.