@shylarah Falk actually mentions something of the reason to Feoras when they were talking.
The Fall King moved with a easy grace. "So tell me, does my courting of the Lady Winter trouble you?" The stormy grey-green eyes looked light, amused. Untroubled. While it would not be wise to lie nor put falsehood before him, the Lord of Fall seemed untroubled by the thought that Feoras still attached on his presumed wife to be. "Be honest, stripling. I care little for such facts. We Fae have- had- long lives." The eyes became troubled as he recalled times long past as he forced himself to use the correct tense. "We may have marriages come and go, lovers as well. A good husband or wife of the Fae in ancient times worried not about such things. The child would be theirs or it would not. If not, it fell to the spouse and lover to care for. If it was the marriage bound cared for it. Marriages were dissolved when it was no longer needed though both parties would have had to agree to it..." Sitting with the grace of a lazy cat, he waved a hand in dismissal at his prattling though he would never call it such.