Of course when you show up for trial in civil court, make sure you bring ALL your witnesses this time (the real ones and the made up ones too).
Don't give him an easy pickin', do everything you can to complicate his job. Bring in all sorts of surprise witnesses, "specialists", whatever.
Have your girlfriend counter sue and press criminal charges for verbal abuse and slander, see how he likes that one.
May also want to play the "I let him win and didn't defend myself in crim. court because I felt sorry for the loser your honour, I never thought he'd turn it into this vendetta" card.

Make it look like he's persecuting you.
There is always a way to turn a situation like that around and make yourself the "victim".
Red