Even if Felix loves her to death, he's not exactly very expressive of it. Their whole relationship is built on a very fragile foundation so people would easily gossip and disrespect her and what they have which could lead to dangerous scenarios (again). They've already established that they have feelings for each other but it isn't enough to protect their love. How do I say this... Adele wants him to give her a sense of security so she's pushing him to the limit in order for him to come up with a grand gesture that would show any other woman that they stand no chance against Adele by letting all of them know just how special she is. Frankly, that's such a beautiful gift to the person you love, especially when you consider the society they live in.
Granted, her antics are very childish but I think her intention is valid.
6 MORE CHILDREN TO GO. YOU'RE DOING SO WELL AS A MOTHER, AKARI