Chapter cover lol, Anne and her harem of problem boys.
So he is the ex-husband, not surprised she broke with him after getting what she needed he is a top-class asshole... was the fact that he was the ex already said? I don't remember this detail specifically.
@taetaetr Probably the two, the modified Pray style was the work of some years and the only two masters and the only true master were Pray and Anne. But without a doubt, Pray wasn't the most collaborative one ( i think she might have tried to kill him during training, him being the "husband" of her beloved Anne ) so Anne is the one that really put work in developing the style.