WH same thing happened to me - my xh went through 2 different law firms (and changed lawyers with in the second firm). Plus my own very experienced lawyer said she had never encountered anyone as crazy as my xh.
He also dragged his feet(our divorce took two years to finalise) and asked for a postponement at one point because he wasn't sure what he wanted. Even the judge looked stunned.
Then he said - well we can always get married again .. . They aren't in reality
