Very upsetting dream

I have woken up this morning extremely upset. I had a very disturbing dream last night involving my husband doing something very very hurtful and also something that would be completely out of character for him. But I’m really upset by this and very hurt which is totally ridiculous!! I should explain my husband is very ill at the moment. He has spent 9 of the past 12 weeks in hospital. We are hopeful that he will be home by the weekend but his illnesses are ongoing. We are awaiting a formal dementia diagnosis but due to severe chest infections and two episodes of delirium this has been delayed. Doctors have taken out a DOLs on him and so medically they make decisions on his health. They have also filled in a Respect form regarding resuscitation which they will not attempt. So I am under an enormous amount of stress and obviously this has probably contributed to the dream but I don’t understand why I am so hurt and upset by this! I’m am normally a very level headed person but I can’t seem to get over this feeling and I’m angry with myself for feeling angry towards him?? Have any other grans out there ever experienced this or does anyone have any advice? I’m feeling so uptight I feel like I’m going to break.