AudreyWinter: Well, at least it stays in the family, right? IIRC Triss and Yennefer also were lovers for a while, so they might be okay with sharing.
And they might be deeply in love, but they can't seem to make it work together. I don't know about the later books, but I think it was Sakias father in fact, who told Geralt he feels their intense love, but nothing will come of it.
But you're right, this promises to be very interesting and I can't believe we have to wait YEARS for this to happen.