I'm starting to think that he thinks I've cheated on him, which couldn't be further away from the truth. All this "not believing me" makes me think so. He did get into paranoid moods like this before, especially when he was deployed and guys that were with him constantly kept on finding out their wives/GFs cheated. He told me that it's one of the biggest fears of a soldier, that he will be cheated on.
Together with his low-self esteem makes a bad combination. Is there anything I can do about it? I don't want to fuel this suspicion.
Accept that there is only one thing you can change in life and that is you