You might benefit from going to counselling especially if you feel traumatised and need to the help of an impartial listener to process some of the feelings.
To move forward, it is important that you continue to talk to your husband and try to understand the extent of his difficulties and what the underlying issues are for him.
There is a good chance of success for the two of you, if your husband accepts responsibility for what he has done and if the two of you are willing to work hard on improving your marriage.
Take some time out together You can also take action at home to improve your marriage on a daily basis.
When I spoke to him again about it, he did apologise and said he won’t do it again but he then came out with a load of stuff about how unhappy he was in the marriage, that we never spend time together (which is true), but I don’t think it is fair for him to blame me.