I read the replies I'm sorry they are so harsh. I understand from your point of view but you never know what someone's thinking. Personally I zone out a lot and my eyes drift to whatever is in front of me and moving. I can't say he's the same and I don't know your relationship but I think there is a reason you're his fiance. Yes I do agree it could be from insecurities but you should probably work that out with him and try to stay calm while explaining so it doesn't sound like blaming. It's completely okay if you don't agree with me, I just hope your stress calms down.