The answer is: It results in Mollie choosing to leave the farm.
Clover discovered Mollie looking over the fence to another farm and allowing Mr. Pilkington to talk to her. Mollie did not want to say the truth but the animals realized she was lying. Apart from that, Clover entered Mollie’s stall and found sugar and ribbons. It confirmed that Mollie did not want to be separated from humans. As a result of that conflict Mollie decided to run away.