YOU SAID:
I am afraid I am falling for my bestfriend
INTO JAPANESE
私は私の親友のために落ちているのではないかと心配しています
BACK INTO ENGLISH
I'm worried I'm falling for my best friend
INTO JAPANESE
親友に堕ちてしまうのが心配です
BACK INTO ENGLISH
I'm worried about falling into my best friend
INTO JAPANESE
親友になってしまうのが心配です
BACK INTO ENGLISH
I'm worried about becoming my best friend
INTO JAPANESE
親友になるのが心配です
BACK INTO ENGLISH
I'm worried about becoming my best friend
Well done, yes, well done!