I was curious enough to look at the spoilers just to ascertain what the new guy's role in the story will be... and I honestly feel vindicated in having my personal prediction of the general idea of what he'll be doing in the story proven correct. Even if not, I wouldn't actually mind him sharing the limelight; if undercurses's spoiler is accurate, then I would really hope that she eventually meets someone that would prove to be a good romantic partner to her and a father figure to her two daughters.
Emphasis on "someone"; it doesn't have to be Kyle or even a man. A "manly" lesbian (to contrast with Shirley's ladylike grace) would do just as well.