Ok sorry I understand you now regarding the rent situation.
Yes, she should be glad you are looking after the property and paying on time! If she was the owner directly that would probably make her happy, but because she is (unless I'm mistaken) some sort of agent, her wage remains the same regardless how you treat the property, and she has 40 hours a week to find ways to act like a dick to you. This is why I prefer renting directly from landlords most of the time :/
From what you've said it seems like you are in a position to negotiate here, to some extent. They don't have a legal case for eviction, if they did it would take months, possibly be very an expensive process, and possibly they would have to answer for invading your privacy/ ganging up/ etc.
Again speak to a solicitor first, but maybe you could suggest to them that you will leave immediately if they give you a lump sum of money, say 2 months rent, hopefully allowing you to pay more than 2 months on a cheaper property? Like severance pay. Say you will go quietly if they pay you off, since they are so keen to see the back of you; if they don't, you will consider it harassment if they bother you again before the end of your contract term, and will see them in court.
Hold your nerve, seems like they are really hoping for a 'confession'