I have been living for at least 10 if not more years with the idea that multiple relationships is not only possible, but a good thing. For my husband it is completely new.
However, I know that my hormones tend to lead me to overreact at times, so therefor outside insight is useful for me at this moment in time.
We will talk about this more and more and eventually he will understand.
I do get it, this is a difficult situation for him, he feels like he is cheating on both of us, even when he knows he is not. He is just not dealing with that in a way that I consider very constructive long term.
Oh well. It is an interesting journey to say the least
eventually things will fall in place and it will become more normal.