What happens when Constance's father visits Wragby Hall for the first time in the novel, Lady Chatterley’s Lover?

When Constance's father visits her and Clifford at Wragby Hall for the first time, Constance's father expresses his concern that Connie is becoming a "demi-vierge," (a half-virgin). Though the remark seems to amuse Connie, Clifford is at once embarrassed and enraged.