No it’s not your fault, it’s typical abuser behaviour. The cycle is:
1. They do something cruel to us
2. We get upset
3. They turn it round to make it look like we are the villain
4. We then apologise and feel terrible, sad, guilty and promise to try harder!
5. We stay with them as they convince us we’re the problem and the cycle repeats back through stages 1-5
As long as they convince us we are wrong and they are the victims, we stay, until we start to see them clearly and see through the manipulation. Are you able to ring the helpline and leave a voicemail for them to call you back? Being in an abusive relationship is really confusing and painful so talking to someone who understands the dynamic is really helpful and they can talk you through possible options.