Ok, im just going to let you have this one, for the sake of analyzing.
Now why would the Prophet pbuh marry such a women if she was so evil? Indirectly you are trying to say he made a 'mistake' by marrying someone 'evil'.
And for the record bro, Surah Tehreem does not talk about Hafsa and Aisha r.a. It talks about Hadrat Safiyyah and Hadrat Mariyah Qibtiyyah.
brother, please provide me the reference about what you are saying beause i have got a Saudi Arabian Quran in my hand (King Fahd University- ie Wahabi) and it is not saying what you are saying. It mentions the ayats in Sura Tehreem are for Ayesha and Hafsa. Sahih Bukhari, Sunan Imam Nasai, Imam Hanbal all say this ayat is for Ayesha and Hafsa. Infact Hz Ayesha herself has admitted to it in Sahi Bukhari.
Sahih al Bukhari Volume 6, Book 60, Number 434:
"Narrated 'Aisha: Allah's Apostle used to drink honey in the house of Zainab, the daughter of Jahsh, and would stay there with her. So Hafsa and I agreed secretly that, if he come to either of us, she would say to him. "It seems you have eaten Maghafir (a kind of bad-smelling resin), for I smell in you the smell of Maghafir," (We did so) and he replied. "No, but I was drinking honey in the house of Zainab, the daughter of Jahsh, and I shall never take it again. I have taken an oath as to that, and you should not tell anybody about it".
*Sahih al Bukhari Volume 6, Book 60, Number 437: *
"Narrated Ibn Abbas: I intended to ask 'Umar about those two ladies who back each other against 'Allah's Apostle . For one year I was seeking the opportunity to ask this question, but in vain, until once when I accompanied him for Hajj. While we were in Zahran, 'Umar went to answer the call of nature and told me to follow him with some water for ablution. So I followed him with a container of water and started pouring water for him. I found it a good opportunity to ask him, so I said, "O chief of the Believers! Who were those two ladies who had backed each other (against the Prophet)?" Before I could complete my question, he replied, "They were 'Aisha and Hafsa."