My friend is trying to blackmail me
One of my friends all of a sudden tried to cut off all of my ways to interact to her. After that I found a old chat group on Facebook and asked her why. All she said was 'because.' So I ended up guessing. It was because in a chat group between both of us I said 'Hi' everyday. After that I begged her to let me talk to her not through that chat group, with two or three other people and she just stopped responding. After a while she responded with give me money for me to uncut all of the communications. What should I do?