The struggles of dealing with false friends, backstabbers, and troublemakers make me think of movies such as 'Mean Girls' and 'Cruel Intentions.' These struggles could balloon into large problems.

Clip from the movie 'Mean Girls':
https://youtu.be/re5veV2F7eY

Struggles...dealing with false friends, backstabbers, trouble makers...

From the song 'Who The Cap Fit' by Bob Marley:

Man to man is so unjust, children
You don't know who to trust,
Your worst enemy could be your best friend
And your best friend your worst enemy.

Some will eat and drink with you
Then behind them su-su 'pon you,
Only your friend know your secrets
So only he could reveal it.

...

Some will hate you, pretend they love you now
Then behind they try to eliminate you...

https://youtu.be/utyTxWvxYr4