Resist the devil and he shall flee away!
That was Arianna's motto after she woke up that morning and realized that she had overslept and failed her promise to her mother. Thankfully luck was on her side and she decided she would leave early. But then, Arianna could not bear to leave without making sure that Marcel was okay, so she decided to stay only until he awoke.
Having known Marcel's tactics, Arianna observed her morning rituals, so he couldn't trick her into anything and was ready to leave. Sure, she missed him, but Arianna needed to be home before her mother's patience ran out. But as usual, Marcel had other ideas, and as tempting as it was - very, very tempting- she had to get down.
Perhaps the next time he comes to get her mother's permission, without getting drunk, they can get physical. But for now, it was not happening. However, it was quite unfortunate that Marcel was stronger than her, and he successfully pulled her down to him.