A Lady's Guide to Fortune-Hunting question

I think as Kitty imagined they will return to Kitty’s residence indefinitely though frequently visit London for Lord Radcliffe had realised the importance of his family and that he needed to be around them. I sensed little sexual tension and so I don’t predict children will be immediate, though with the times was it not expected that one should consolidate the marriage? I should hope that Kitty’s sisters accept Lord Radcliffe, though I imagine they may find it hard to adjust to Kitty’s new romantic side as well as having another man in the house - after their loss of their late father. I am also wondering that what if Kitty realises her power in society, and attempts to climb further up the social ladder and similarly to Radcliffe, will he become unnerved eventually by her social position?