Bly could not stand Secura. He wanted her so bad he could taste it, but he thought she was a dingbat and wanted to strangle her everytime she spoke. Preferably in bed.
During the Battle Of Felucia, Bly had finally had enough of Aayla's lollygagging and inane questions, and gave the order for his troops to open fire. Without hesitation, they all shot her until there was nothing left of her remains.