Used when you feel emotionally safe to share inner thoughts or secrets with someone. After getting to know her, I was ready to confide in her about my past.
Pro Tip 2/3
Close Relationships
Mostly used with people you've established a close, trusting relationship with. He's my best friend, and I confide in him all the time.
Pro Tip 3/3
Not for Groups
Typically done one-on-one, not in groups. It implies a private, intimate conversation. I need to talk to you alone; I have something I want to confide in you about.