It all came very sudden

One day, the two colleagues Bob and Mary had a particularly bad fight. She started getting personal.

"You, who cannot even get a girlfriend."
"I could if I wanted to."
"No way!"
"I could even get married within a month, if I wanted to."
"And who would want to have you?"
"Look, do you want to bet?"
"What?"
"I bet you 10 Euro that I will get married within a month."
"You are engaged?"
"No. I swear. I am the same lonely bachelor today as yesterday and as last year."
"So you do not know who you would marry?"
"There is a candidate, but she does not know she is one."
"And you want to convince this poor girl to marry you within a month?"
"Yes."
"Ok. 10 Euro you cannot."

They shook hands.

"So, do you want to marry me?"
"What?"
"I said, do you want to marry me?"
"I am the candidate?"
"Yes, you are."
"You do not even like me."
"Correct."
"I do not like you."
"True."
"I already have a boy friend, who lives with me."
"Yes, but does he want to marry you?"
"Well, he hasn't said so. Not yet. But one day...."
"You prefer waiting for him to perhaps propose to you one day, or do you want to marry me now. Within a month?"

Mary was taken back. She had never in her wildest dreams imagined anything looking like a romantic relationship with Bob. And yet, here he was proposing to her. He was still the same vile Bob, but he looked kind of cute, when he proposed.

"Here is the phone. Call your boyfriend, whatever his name is, and tell him that you will not come home tonight. You will move in to me."
"Tonight?"
"Of course. It would be very inappropriate to live with someone who is not your fiancé."
"But..."
"I dial the number for you."
"You must be joking."
"Hello. This is Bob – a colleague of Mary's. She has something she wants to tell you. One moment."

He handed her the phone.

"Look, honey. This is... I do not know how to say this... But I will not come home tonight.... No, not tomorrow either. I am going to get married... With another man... You do?... What's her name?... What!... You bastard!.. You utter bastard!... I do not want to ever see you again in my life."
"Well?"
"Yes... We can get married tomorrow, if you want to. The civil register will be open by then."
"Let's wait until the day after tomorrow. Tomorrow I have a customer presentation, and you should really finish that report of yours."

She slapped him.

"Yes", she agreed. "Let's go for the day after tomorrow."

After the ceremony, he kissed her passionately. Then he held out his hand.

"My ten Euro, please."

She smiled and handed them over.

"It was absolutely worth it."
"It was, wasn't it. Do you want to play quit or double?"
"What do you mean?"
"I bet you 20 Euro that I can get a divorce within a month."