I'll say it, I think Natalia and antwon were hooking up
The weird process they explained for matching Nataliia with a man of the church, a man that would "take the place of her father" and just all the alone time they spent together. That summer after series came out they were photographed by "paparazzi" traveling together to sell fireworks in like Ohio or Indiana and the vibe of the photos was just so weird to me. The first thought that went through my head was that the call with the man's at the end of season 2 where they're like "we're done with her. Oh she's done things" was going to be regarding Cynthia catching Natalia "trying to do sexual things" to get husband or something.
ETA- the tone of my original post totally sounds like I'm blaming Natalia or suggesting she had some responsibility in it if this was in fact going on. That's not at all how I meant it. I guess I was more thinking about how Cynthia would likely frame it and how it was probably used against Natalia. I believe both Cynthia and Antoine are aggressively predatory in everything they do and I believe Natalia is desperate to feel loved. It just wouldn't surprise me at all if this was going on because of that atrocious power dynamic.