In the excerpt, Danny explains to Marthe that he didn't reveal a certain perspective because she already understands it. He emphasizes that he and she are not part of the same family, which is closely bonded and has mutual support rooted in shared upbringing. Danny suggests that their relationship and family ties are unchangeable, and Francis's loyalty belongs to his family, regardless of future decisions like marriage.
He strongly asserts that Francis now belongs to his family and that Marthe cannot and should not attempt to interfere, indicating that their relationship is essentially doomed or off-limits. Danny underscores that the family’s bond is solid and unlikely to be disrupted, and anyone outside it, like Marthe, stands little chance of influencing Francis anymore.