@Spider1 - Welcome to the community. This is a community like no other I have known and it often or almost always comes up with helpful information, suggestions and advice on any number of topics and so I guess you are in the right place
I have no idea about Othello syndrome but I see from a search on this forum, there have been two previous references to the term. You can see them in the below snapshot.
Having quickly scanned them, I feel that member @Matthew1798 may be able to offer some advice on this as he has commented on the subject in both posts.
I have tagged him and if he is still using this forum, he will hopefully respond.