Is running away from home cold violence?

It depends on the specific situation. If you run away from home for a little thing and don't take the initiative to contact each other to solve the problem, this is cold violence.

If the other party has domestic violence, derailment and other principled problems and does not change, running away from home is not cold violence, but a way to protect yourself. But you should also negotiate with each other as soon as possible to solve the problem, or divorce through litigation.