Said another mans name in my sleep

So basically it was Xmas day/night I was pretty drunk and fell asleep and my husband robert said I called another mans name apparentlyi shouted David now the only man I knew called David was my uncle he passed away this year of cancer I don’t even know I said it I apologised for saying it but now he’s basically accusing me of cheating with a David I’m trying to reassure him there isn’t any David around but my husband is a very paranoid man he constantly thinks I’m hiding something when I’m not or accuses me of things I haven’t done can someone please help me out with this one because it’s guna carry on for weeks