Dexter, he actually wanted if Immanuel wanted and would be able to be in New York City, for school or for education. Because according to him in the Netherlands it was not too good for Immanuel himself. And actually here Dexter is just trying to be a good parent to Immanuel.
Even if sometimes his good intentions were not accepted by Stella, and also Jasper. In fact, Dexter knew that he was a father who had not been able to be a really good father to Immanuel, nor to Antonio. But it's true that Dexter couldn't do what he wanted to do.
Because they were both Stella and Jasper, just trying to be really good parents. Because even here Dexter had made a mistake. And moreover Stella could only try to be a truly obedient wife to Jasper. Even if sometimes Dexter knows that he can't force his will on both of them.