Behavior like that can escalate and end up being very bad. Best to talk to her parents and try to get her some therapy. She may not like that you did that, but it's more important to get her help if she needs it. Also, show as much support as you can. Part of depression is feeling alone, and part of helping it is making them not feel so alone.
How did hopeful motivate Christian not to take their life
a
Just be yourself.
Don't lie to her.
give her flowers
compliment her boobs
Tell her mom
tell her you will be safe and fine
you can't. maybe he is happy the way he is.
You need to convince Our Lord, not St. Peter. You convince Him by your belief, faith and manner in which you lived your life. Were you a good Christian?
You're presuming that they aren't Christian. It's certainly at least possible to be both a Roman Catholic and a Christian.
by letting her do her own thing