26f. I am diagnosed bipolar, and dated someone last year who was undiagnosed but definitely suffered from a mental illness, most likely bipolar. We broke up because he was going down a very dark path, and yesterday I learned he killed himself. 

I loved him a lot and tried to help, but he pushed me away. 
Please take care of yourselves, please know people love you, and please know if you’re ever feeling suicidal there’s someone out there who will be devastated if they lost you.