Suspecting or knowing that someone you know is subjected to violence is often frustrating. You want to help but what can you do?
Listen and do not question what the woman tells you. Victims often feel guilt and shame; these feelings are reinforced if you question her conduct or have an "I told you so" attitude.
Make it clear that you will not abandon her even if she chooses to continue her relationship with the person who is harming her. Let her know that you will be there for her if she needs help.
Break the isolation. Don't give up on her: get in touch with her even if she withdraws (e.g. can never come when you invite her over or suggest activities, or is dismissive when you get in touch). You are also welcome to call Kvinnofridslinjen 020-50 50 50. At the other end of the line are people experienced in supporting women subjected to violence and those close to them.