Hello Claire, I am a huge Tudor fan and have always wondered why Anne was so hated. I don’t believe she wanted to marry Henry but did so because like all women in the 16th century she did what the men in her life told her to do. She did not have the option and we all know what happened if you said “No” to Henry. The people of England hated her but surely they had to have understood that this was something she had no control over. I think she was judged unfairly.
I think that they simply saw her usurping Catherine's position. Catherine had been their beloved Queen for 24 years when Anne was crowned Queen so it was a lot for the public to deal with and they didn't know Anne. If you consider the public's strong feelings about Camilla Parker Bowles after Diana's death, you can see understand it. The people didn't really know what was going on.