Unwanted strip slashes in text widgets

I know people say this all of the time, but this really just started happening out of the blue.
Every time I try and save simple HTML code in my text widgets, it keeps adding backslashes and F'ing up the code!

It was fine the last 3 days, why is this happening and is this something in Wordpress?
Why would they put that there?

Anyone know how to make it stop?