Erotomania?

My husband and I have been together for 31 years. He is Bipolar 1 and has had difficulties with psychosis, mania and depression many times during our life together. He has a tendency to think women are attracted to him, and are coming on to him. The last woman this happened with started in 2010. She attended our church and works at the same place he does, though not in the same department. He started to talk to her before church started. She is in the choir. Then, it moved on to emailing her a lot. He has done this other times. Emailing a few women he thought he was having a relationship with. Some of it was sexual in content. I don't know specifics about the content with this last one. He hasn't given them to me. But, in 2011, she had their employer warn him to stay away from her. The end of 2012, he became manic and phoned her. She had him arrested and ended up getting a restraining order against him. She then got a permanent restraining order against him in 2014. This woman was just one of many women who he was convinced was attracted and coming on to him. Recently, I had a conversation with him about this. He is totally convinced that these women were attracted to him. I know for a fact none of these women ever were interested in him. Obviously, the last woman made it extremely clear. Unfortunately, he thinks her husband made her arrest him and get a restraining order against him. Is this erotomania? Is it possible to talk sense into him? Make him see that none of these so-called attractions were real? He is a professor in a university. Recently, he told me that an attractive, young woman in his class flirted with him. But "he did not take the bait, and pursue it." He was quite proud of himself. I am very upset. I am sure that was not at all what happened. 20 year olds do not come on to 58 yr old men who look 75. I am worried that he could lose his job if he did "act" on an imagined come on. He almost lost his job twice because of the last woman with the restraining order. Sorry this is so long. Does this sound like Erotomania?

This sounds similar to me, but i also think the people infatuated with me are watching me and listening to me

Hmmm is this some time of narcissism as well? Does he believe that he's super attractive?

And him messaging other women, you're okay with that? Are you both in an open marriage or something?