So proud!!
I would choose a third party (trusted friend / solicitor if you can find one with legal aid etc) and ask THEM to tell him clearly in a letter followed by email (it's all about the paper trail now!) that all contact re you is to go direct through them and must not come directly to you.
It should say this third party is happy to communicate with HIS solicitor and other immediate issues requiring your signature / agreement.
Note that any direct contact with you and anything clearly outside the terms of their letter will be classed as harassment.
THEN DO NOT ENTERTAIN ANY contact with him yourself. Block, delete and breathe.
Of course ask Womens Aid / your refuge team for support writing the letter. Share it with your local police force asking them to log it, your GP also as it's affecting your MH.
Sometimes also worth sharing with particularly close friends and family - only ones you think he may try to use to get in touch with you.
Then don't rise to anything requiring direct contact. Please Please stick to no contact - something few people mention is that it's often a confusing and weirdly hurtful feeling when they do eventually give up and move on without a reaction to lee fuelling the fire, but this happens more often than is discussed here. It doesn't mean you've made a mistake, it means you've escaped a sometimes horrid part of the process with the ones who don't give up as soon.
And you're giving yourself as much support and ammunition should he be one of the bastards who hangs around like a bloody unpaid bill.
Ask loads of questions on here and to experts from services too WA / shelter etc.
YOU CAN DO THIS 