What is this type of situation called and what should be done about it?

So if someone where to ask you to do deed with them because they wanted to. And kept asking even though they have repeatedly said they were going to stop and it was the last time. Especially if you know you didn't want at some point with that person. And they claimed it's because they thought that there was something going between you and them even if you expressed that you didn't feel the way they did. What would you do and what would it be called?

What is this type of situation called and what should be done about it?
Post Opinion