Confusion

Since 2 hours I am going through the list of my followers and those that I follow. I noticed that many of my Blip friends were "unfriended" so I did not follow them anymore and many other names in the list of the ones I had picked out to follow were totally unknown to me and definitely were not chosen by me. I have no idea, how all this could happen. And is there a Blip Central Site, where I could ask?