How can you help a friend or family member? Edit
Let them know that the abuse is not their fault. Reassure them that they are not alone and that there is help and support out there. It may be difficult for them to talk about the abuse. Let them know that you are available to help whenever they may need it. What they need most is someone who will believe and listen.
If your friend or colleague is suffering domestic violence then please contact https://www.womensaid.org.uk/the-survivors-handbook/im-worried-about-someone-else/.