Hope talking to friend have helped you PC. And i guess it would be ok for him to listen you. One of my friends also have depression and i don't share with her, afraid that she might get upset but whenever she shares her problem, i like to hear her. Though it upsets me but doesn't triggers me for any bad action. I also don't want to talk about suicide because i want to keep this option open for me but i always remind myself that i'm not supposed to use it. You also constantly remind your mind that you'll NEVER do it. You have courage to beat up such urges!