Can't Get Low Price Air Ticket

I thought that it is high time for me to book an Air Asia ticket for my hubby. We are going to Bali on this coming 24 August. Have I posted about my delay on Bali trip earlier? I can't remember already. I bought my ticket through travel agent with RM650 in March. I supposed to go to Bali in April but delayed my trip till Aug. I'll be going with hubby in Aug then. I checked the price online in April, and it was only around RM500++. When I tried to purchase this evening, I was shocked. The price has increased to almost RM660++ including all taxes! I felt a heavy knock in my heart... :-(

I don't expect the price to have so big difference. I should book it earlier in April. Why was I so lazy? Delay and delay till today.....aaiiihh....what should I do now? Shall I purchase it immediately? Or shall I wait for its promotion on air tickets? I'm in dilemma......still feel sad..... :-(