I am so so sorry this happened to you OP, and I am glad you have the support of your sisters.
The violence he inflicted on you child me. The strangling, the sexual violence.
Attacking people is a crime. What he did is a horrible crime. Let the police do their job, speak to them truthfully. You should be offered victim support and they may have a special domestic abuse team.
Please look after yourself, this was a horrendous attack, and with the nature of violence you might like to look for specialist counselling.
It’s natural to still be in love with the man you thought you had, or dreamed you had. It is natural amongst abused women (and children too) to be afraid to acknowledge that your abuser IS an abuser because that is all you feel you have and it is too scary to believe that the only person you have is a bad person.
Counselling can help with this. The Freedom Programme (online) could help.
For now, lean on your sisters.