oh god zelos why god the influencer act
in the beginning vergil was probably really vexed with him
one of those 'im going to be tersely polite with this man until he leaves'
but the more he visits and the more he shows he's actually sensible, he might actually loosen up a little and pick out there's more to the obnoxious red-haired man.

...he reminds him of dante so he's not too sure how much he'll LIKE him around though, even after he proves to be Not As Awful as Once Assumed.