"How still calls me your 'ex-father'?" is a question that highlights a complex relationship, possibly involving feelings of separation or change in family dynamics. The speaker seems to be puzzled or perhaps amused by how someone refers to him, indicating a shift from what was once a traditional paternal role.

Fry responds by saying, "It happened to him," suggesting that the situation or label is something that has occurred to others as well. He also mentions that sometimes it's just their "vaurian of father's drug traffickers," implying a chaotic or criminal context that influences how family relationships are perceived and labeled within their environment.