Hi Thoughtfulmama and welcome!

I'm so sorry for the circumstances that bring you here, but I'm glad you've found us. We're a supportive group with a lot of tips, tools and experience to share.
We get it. We understand. I know for the longest time, I was convinced that I had done something horribly wrong, that the problems in my marriage and with my H were all my fault. If you keep reading and looking into this site, you'll see you're definitely not alone.
We recommend people NOT share their suspicions about BPD with their loved one. As you've guessed yourself, that rarely (if ever) goes well.
What behaviors of your husband make you suspect BPD? Can you give a couple of detailed examples? The more we know, the more we can know how to help you!