Hi momandspouse,

I'd like welcome you to bpdfamily. I'm sorry to hear that you're going thro a difficult time. I can see how scary that would be when a loved one tries to commit suicide. You'll find that you'll fit right in here, many members can relate with you and offer you guidance and support. You're not alone.
I'm glad to hear that your H is on waiting list to see a specialist, are you see a T ( therapist) for yourself? The best combo is seeing a T and a support group concurrently.
You're right BPD is an emotional dysregulation disorder, a pwBPD doesn't have the ability to self sooth and it takes much longer to return to emotional baseline. Also, a pwBPD feel low self worth, low self esteem, self loath and are hypercritical with themselves, i'd like to think that the rigid and critical thoughts directed at us externally is a part of their inner dialogue, constantly like a tape on a loop.
If he's emotionally dysregulate it may be just better to wait until he returns to baseline, that's what I do with my ex but I don't interact with her 24/7. A pwBPD need a lot of validation, now it doesn't mean that we validat everything, don't validate the invalid, but it helps validate feelings because it makes a person feel like they're heard. Here's a link to validation, you'll find the lessons to the right side of the board and I'm looking forward to reading more of your posts.
Don't Be Invalidating