I'm back. My apologies for yesterday, I was pulled from my computer and didn't get back onto the site until now.
It would be nice if you had more information, but we'll work with what we have.
In Canada, a legally married couple that live in a home that one of them (or both) owns live in their Matrimonial Home. In family law, each has equal right of possession and a right to half of the value of the equity in the home when they separate. It doesn't matter which spouse is on title, or if it's both. But that's in family law.
This is more likely to become a criminal matter before it hits family court. The wife is alleging that the husband is violent. If she calls the police to report that he's being abusive, the police will attend and try to de-escalate the situation; if there's some evidence (even the seemingly reliable assertions of the "victim") then charges will be laid. Even if charges aren't laid the police will likely try to separate the couple to give them some cooling off time, and try to get one of the spouses to agree to stay elsewhere for the night.
The police are there to keep order and prevent things from escalating. The police aren't family lawyers and don't care who is on title; they just want to resolve what could be a dangerous situation.
So if the husband goes back to the home, which he's entitled to do, he may find that the wife calls the police on him and then he's out again. That's something he should avoid. It's not legal advice, rather practical experience from which I speak.
Regardless of who leaves the home or who is on title, the spouses are still entitled to half of the equity in the home. So leaving the home isn't giving up one's claim to the value in the home.
If both are on title or if just wife is on title, she can go to court to seek an order for "exclusive possession". As I said, each spouse has equal rights to possess and live in and use the home. So to get one spouse out of the home requires a court order, and that's called an order of "exclusive possession". One spouse gets a court order that bars the other spouse from attending at or using the home. The most common grounds for claiming exclusive possession are violence, or that the other spouse is damaging the property.
He absolutely has rights, and the courts aren't totally woman-centric. I'll admit that it's relatively easy for a woman to get an upper hand in litigation by claiming abuse, but it's like that in the US too. There are ways to deal with this approach, depending on the evidence.
So while the husband has the right to attend the home any time (for now) it might be smarter if he didn't. If he signs something saying he'll leave that isn't particularly binding or enforceable, but the husband is always running the risk that the wife will make good on her threats and call the police to report that he's being violent.
That's a broad sweep of the issue. Is there more information that will allow us to focus better? I'll await your question or comment. Or, if you're satisfied that I've answered your question I'd appreciate a positive service rating please.