For suicidal ideation, plus escalating to lighting some charcoal and going to a suicide bridge she'd been obsessing over to  "prove to herself it was stupid and she'd never do it" 

She doesn't have a diagnosis of BPD (I do) but... i'll be interested to see how they diagnose her.

It's been about 10 years since SSRIs took my obessive suicidal ideation away. I took it seriously with her because i know how serious it is. I couldnt play games with her life anymore.

Shes mad, of course, but what upsets me more is that she said this will make her worse and more likely to kill herself. While i wouldn't do anything differently (this longwinded post isn't to ask if i did the right thing) --- I want to know if this is accurate. i never ended up getting hospitalized myself (i'm a quiet borderline) so i need to ask

tl;dr  If you went to the ER for suicidal ideation, did it help, or make your life worse?