”I’ll do anything you ask. You may even become my lover when you grow up.”
”Ah, I failed~. Thank you, my prince.”
but is unfortunately rebuffed for her efforts.
Don't be tricked by how she plotted to 'only' get a son (not a husband). I dislike how forced the love story was when she slept in his room the first night at his house--despite believing that he wants to take custody of their son. Oh, and the man sleeps naked, so she slept naked, too. Sooo.... ugh.
It was never explained *how* or *why* her bathroom connects to this other world though...