Hello and welcome
@Josie-online to this friendly and supportive forum. There is a wealth of shared experience of dementia here so I am glad you have found us.
I am sorry to read about your husband's aggression. That must be extremely difficult for you; I do feel for you. Is there any way you can get him to a GP appointment - or what may be useful if you can keep a written record of his behaviours, outbursts etc and let the GP know yourself of your concerns. It is not uncommon to be in denial that there is a problem, and that you are the person in the wrong.
I am attaching a link which you may find useful to help with dealing with and tips :
The following piece was posted a while ago on DSF and made a big impression on me. It is something I have referred to time after time and tried hard to follow. We have many new members who may not have seen it before. Yesterday I posted it on another Thread but thought it might be helpful if...
forum.alzheimers.org.uk
People here really do want to help, and most importantly, they understand, and others will probably be along shortly with their suggestions.