Between two girls, left in a quandary (7)
I believe the answer is:
dilemma
'quandary' is the definition.
(synonyms)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for dilemma that I've seen before include "Awkward situation" , "Difficult problem" , "Predicament" , "Perplexing situation or difficult choice" , "The choice between courses of action, all equally undesirable" .)