Reading some of the msgs makes me understand why no one wants to live in a joint household anymore. It is such a sad situation. Personally, the thing that happened in my case was, initially people might feel ur habits are weird but as time passes they begin to accept you for what you are. If they see you believing in certain things like ur diet and skincare strongly, they will understand. As far as diaries go, it is the quickest way to spoil a healthy relation. He might get doubts in other unrelated situations too once he reads ur diaries. I know you wrote them as sweet memories but you will have to find an alternative solution to it. There are a lot less decent people than you think in this world!!