I really need help over coming depression.?

Nothing is going right for me. Im a good person. I was in love, still am, and the guy just ended our relationship today. He's a great guy. He still wants to be close friends. I'm just in so much emotional and physical pain. I want to commit suicide but I know it'd hurt my loved ones. I can't quit crying. I'm so depressed. I need help. He was the only person who made me genuinely happy. I love him so so much.