So this is a long one but on Monday whilst matching TV me and husband heard awful crashing and banging noises from upstairs (we live in a block of flats) to the point are walls were shaking. My husband gets up to see what was happening and if they both were okay, as he got to the door the guy from upstairs stormed out of his house with is much rage in his eyes and started shouting at my husband to leave it so my husband came back inside as a girl we didn't know took him away in a car. A few minutes later his girlfriend knocked our door hysterical asking to come in so as nice neighbours we let her to which she broke down saying he assaulted her and it wasn't the first time its happened. I made her a drink and tried to calm her whilst she phoned her mum who was going to come to her. She asked if she could stay in our flat til her mum got there as she didn't feel safe which we said yes as i wouldn't want to put he in a situation where she didn't feel safe. My husband asked if she wanted him to phone the police but she said her mum was going to for her. She was in our house for an hour before her mum turned up to which she came into ours to see her daughter and she also said that she hasn't phoned the police. The mother then rings the girls boyfriend (on loudspeaker) of say that he needs to come an get his stuff from the flat, he starts shouting at her mum to get the fuck out of his flat which is when she told him she was in our flat to which he then starts shouting "that's it Will (my husband) you guys better watch your back cos your a dead man walking" he then starts shouting on the phone that he's going to bring his cronies with him. About 40 minutes later he turns up with a load of mate shouting his mouth off so my husband phoned the police. He got arrested that night but released the next morning as she wouldn't press charges and can now return to the flat. I'm honestly petrified and now scared to be in my own home. My husband works till 12 every night and this is the first night he's gone back as I've been so scared. Sorry for the long post I just feel really alone and anxious us