Ginny,
Im not a professional, but Ive studied and researched narcissism for quite awhile.
Please watch Dr. Ramani who is an expert on narcissism.
Shes a guest on Mel Robbins podcast which you can find on youtube. Episode: (New research from world leading expert Dr.Ramani episode)
Dr. Ramani also has her own youtube channel.
Can living with a person with this personality disorder make you ill? Yes.
I will leave this info with you.tggg
After youve listened to her and you think this is your partners tendency, please consider more research and then counseling.
If you suspect youre dealing with this type of person
1) do not mention it to them.
2) realize Youre not the problem.
YOURE NOT THE PROBLEM.

From here, you can be at peace with YOURSELF.
In other words:
You ARE worthy of love.
Its not YOU.
God loves you.
You Can Learn tools to deal with this person.
But, you must find a good therapist who deals with narcissism.
Arm yourself with knowing about this type of personality.
The more you know, the more you are able to speak Truth to yourself.
Blessings to you, precious, Ginny.
You are on your way of building yourself backup and better health.
Its going to take awhile.
For your health, you may need to leave this toxic relationship.
For now, understanding, counseling and getting healthy is YOUR priority.