You are not to blame for his behaviour - he is at fault here. I give you the following from the Womens Aid webpages in response to your most recent posting:-
"It?s possible for abusive people to change their behaviour. However, it?s very difficult to change and so isn?t very common. If your partner has promised to change before and then has resumed his abusive behaviour it?s likely that this pattern will continue to repeat itself.
Unfortunately what usually happens in an abusive relationship is that the abuse increases both in frequency and severity. If your partner is serious about changing his behaviour then he?ll need to seek help either through his GP or through a service specifically for abusive men.
It?s also important to remember that changing this type of behaviour will take time and effort. If he attends a few sessions and then announces that he?s ?cured?, this is unlikely to really be the case. The best perpetrator programmes provide support for the partners and ex-partners of perpetrators, and they?ll be able to give you further information and support.
You might want to take a break from the relationship while he seeks help. During the time that he?s dealing with the reasons why he?s abusive, many issues will be brought to the surface. This could increase the intensity of the abuse for a period of time. For this reason, you may want to consider how to ensure your own safety, and that of any children you may have, during this period.
If your partner is still in any way blaming you for the abuse, then it?s clear that he hasn?t accepted full responsibility for what has happened, and while he?s still saying this, his behaviour is unlikely to change.
Your partner is the only person who is responsible for the abuse. Consequently he?s the only person who can change what?s happening. It?s only natural to want to help someone that you are in an intimate relationship with and it can be difficult to realise that this isn?t really possible. If in some way, he blames the abuse on your actions then this shows that he?s not accepting responsibility for his behaviour. It?s likely that if you change aspects about yourself or your behaviour in order to appease him, he will eventually find some other ?reason? to be abusive towards you.
If your partner wants to change his behaviour, then he?ll need to seek help either through his GP or through a service specifically for abusive men.
You can take positive action yourself ? for example, by removing yourself from the situation, reporting his abuse to the police so that he?s held accountable, or using legal means to prevent him from being able to hurt or harass you.
It?s a misconception that an abusive relationship is violent all the time. If a partner was violent and abusive all the time and from the outset of a relationship, you?d be unlikely to get into a relationship with him ? or to stay with him very long if you had. This is what makes it so difficult for women to walk away from an abusive relationship. Often a woman doesn?t want the relationship to end, she just wants the violence to stop. However, unless he?s addressing the reasons for his violence towards you, remember that it?s likely to happen again. Unfortunately what usually happens is that the abuse increases both in frequency and severity over time. It might help to talk to someone (like Womens Aid) who help you look at your options".