Me [25F] with my friend [23F]-She is suicidal I don't know where to find help!

One of my closest friends has been spiraling downward with depression and it's been getting worse and worse. She's suicidal, and has been expressing suicidal ideation for months now, but I think she might be inclined to act on it now. She keeps saying how she's made up her mind and given up. I have been trying to be supportive to her for this entire time but I a) live on the other side of the country now and b) she's been pushing me away.

I contacted her husband two weeks ago to tell him I was worried about her and he was really dismissive. He said she just needs to stay on her meds (she was put on Zoloft about a month or two ago) and that it doesn't help that I don't live closer (I'm sorry but does that sound like he's blaming me or am I crazy?).

Now she's deleted Facebook. She's posting on her tumblr constantly about how she needs to just go through with "it" and when I try to reach out and tell her that I love her and value her she shuts off comments and tells me that I need to give up on her. I'm so scared I don't want to lose my friend, I just want her to get the care she needs.

I hope this is the right sub to go to...

**tl;dr my friend is potentially going to kill herself