Not expecting Edmund to kiss her on the lips, Penelope widened her eyes.
The woman immediately struggled, asking Edmund to let go of her and stop the kiss. However, Edmund ignored the signal given by his wife. He had to tell Penelope through his kisses that he was so desperate without Penelope by his side. That he is nothing without her presence in his life.
Penelope knew she would lose if she continued to receive this much attention and affection from Edmund, even though he had hurt her heart. Because of that, Penelope made a decision. She bit Edmund's lip and stomped his foot hard.
Edmund immediately stopped the kiss and took a step back. He held his injured lips and could see the blood on his finger. Edmund didn't mind if Penelope bit his lip until it bled. He also didn't mind if Penelope beat him or hurt him. If that could make Penelope go home with him then Edmund was ready to accept whatever punishment his wife gave him.