Friend A' = gal.
Friend B' = boi
My friend A' smsed friend B', "Do he have any feeling for other girls when they were steadying" Friend B' replied her "Don't have ahx?".

My friend A' and friend B' last time broke up and soon later patch up again.
Friend B' later smsed her " Last time when we broke up, I did have feelings for xxxxxxx, but it was short." (crush)
My friend A' is very confused by friend B' reply. She doesnt know how to react or should she be angry, sad, understanding or act like nothing has happened.
She is now very sad and her heart was shattered.

When Friend A' and B' broke up, B' had a crush on xxxxxxx.
My friend A' then asked friend B', "If it was a crush on her(xxxxxxx) only, Why do you still told me how much you wanted me back, how much you missed me"
My friend A' had lost trust on friend B'..
Can anyone tell me how should my friend A' do? Friend A' is now steadying with friend B', but she is very very confused. Should A' break with B'? why?