It is so very sweet of him, how much Joel does the most to make Aoife feel like she is someone special. From almost the start of connecting with him she has felt an almost family comfort, and it would be tempting to think of him as a brother, but he doesn't need another sister and she doesn't deserve anyone else before bringing her own family back together.
She can't permanently move until things had been set straight. Moira, Amelie, Thomas. They don't have to love each other, although Aoife still very much believes in family, but they have to be able to connect. Isaiah might follow her, but until she strengthened the other important relationships in her life..

"I'm already rich", she winks. " I'm just going to try to work for it now. "