Ah the flavours of Thailand! Tuna looks great. I love it when you can get the balance of flavours correct in Thai cooking - that is a balance of sweet, sour, spices & hot! I didn't notice any sugar in your ingredients. Also did you use the roots of the cilantro?
I am holidaying in Khao Lak in Thailand and I am enjoying their street food.
When you stop horsing around it is time to fire up the BBQ & Smoker