The first sentence is about the trust between a wife and a husband. It says that no other wife would trust him as much as she does.
And the other sentence is also about some couple. The woman is pointing out that nobody (no other wife) would give him the things that he got from her. She thinks that she gave him the most.
I hope I explained enough, so you get the true meaning.
I don't watch that show, but this is the meaning of those two sentences [emoji]