Annie and Corky
OK, so as long as the whereabouts of Kevin's wife was a mystery, I could see Kevin not wanting any other meaningful relationships. But now that he knows she killed their child, and the relationship (as I see it, is doomed) Can anyone see a blossoming romance between Annie and Kevin?
Now before you all get up in arms about Annie being a "child", please remember that we are in the mid-1860's here. Annie, though at times looks like 10, could be as old as 13 or 14, it is hard to tell, and no mention of her actual age is given.
In the 19th c. only in the upper classes did girls wait until 16-18 to get married. In the lower classes 13-14 was a quite common age to marry.
Needless to say.... the question of a "child's innocence" is not in play here as Annie is an "adult" when it comes to carnal knowledge. Annie loves, or at least has a crush on Kevin. they are both terribly wounded souls and would be good for each other.
I do know that as of now (in the series) Annie is a reminder, and a replacement in Kevin's mind of his murdered daughter, but over time things can change...
It is obvious that Annie is not one to be turned back into an innocent child again, even with the trappings of wealth and high-society, so unless Kevin gives her the love and attention she so desperately needs, she is doomed..
Personally, I think that this idea would be too risque for even 21st c. TV, but if Kevin could convince Annie not to think of him as a lover, but as a father figure, maybe that would be an appropriate answer??