My thought too since they're the apple growers from Larkspur. It's telling Lucas had his mind set on having a man of his choosing as a partner from the start. He also hasn't said anything about women. I believe we can safely wager where Lucas' interests lie.
With crops, horses, and apples, they now have a diversified business plan. I think Jubal should snap up the adjoining land before they get nosey neighbors.
Now how long before Lucas steals a kiss? He'll have to be the one because Jubal's already been burned.