He can't really move on, being in prison can he? So he's super focused on you.
What I would like to point out, firstly is that: He still does not care about what is legal, and what is not. He is acting outside of the law to you, in even contacting you.
Seems quite disturbing to me, given that he is still in prison for his illegal actions toward you.
8 years in prison is a long time, so I am going to assume that the abuse was really quite serious.
It's your decision to make, but you need to understand, that man who is professing to change, and love you, loved you when he was beating the shit out of you too.
The only difference, is now you have "wronged" him by pressing charges. In this situation I would say that piece of information, instead of acting as a safeguarding factor would put you in a greater sense of danger.
If he thinks that you are going to tell for the level of abuse you have already faced, he might think he faces greater chances of not being caught and going back to prison if he makes you more fearful, or shuts you up permanently.
You should probably contact a DV charity and ask for their opinion. They'll have stats and experience of dealing with this exact situation.
Please though, take from this that the law that says he cannot contact you is for your own protection. If he was a changed man he would be following that law. He isn't and doesn't care what laws are in place to protect you. He will do exactly as he wants.