All you can do is keep on doing what you are doing, and remember why you are doing it. Try not to be forced into that place where the reasons for splitting, are outweighed by the good times, and I'm sure there were some.
You might get a diary, and jot down your thoughts when you are feeling you aren't making any headway. As long as you keep busy and stay your ground, these feelings will eventually disappear.
You are doing the right thing, but I urge you to remain cautious, you've had a bit of a break from him, but he is still the same person, and if he sees an opportunity to contact you, he will.
I wonder if it wouldn't be a good idea to get some legal advice before the upcoming court date. You will most likely be asked, in detail, what happened on the night he was assalted (and show how he contributed to the assault), in which case, he could step up his connection with you thinking you will make him appear to be innocent.
Also discuss with your lawyer, your fear of having to face him again, because of his behaviour with you after the split (particularly). Many lawyers will offer a free consultation so you have nothing to lose.
Your feelings of guilt, sadness and depression are normal after a breakup, especially when you have a man manipulating you. Remember that is part of how an abuser operates- control, control control. It isn't you he is interested in, it is himself.
My opinion is that people like that are incapable of giving love, and respecting anyone who doesn't comply with what they expect in a relationship. Your continued denial of contact will upset him, but for all the wrong reasons. Hopefully, he will go in a different direction, and sadly, he'll likely also repeat history.
Be careful, and be strong.