I once warned my neighbor about a girl, told him she's pregnant for someone else so he should be careful getting too close to her.
He snitched on me and the girl reported me to guy that leaked the pregnancy information to me... Well my neighbor helped her get rid of the pregnancy and they've been going out ever, they've had a handsome son too.
Though I'm still in great talking terms with him, I know my limits and bounds. Lesson well learnt.
Well sounds like she hasn't betrayed him yet so good for him so far I guess.