The implication is that Zhang Ye didn't control the amount of sauce well, causing the dish, which was supposed to be perfect braised lion's head, to have a rather strong taste. Zhang Ye's face instantly turned red, but he didn't feel like Du Xixi was deliberately targeting him.
It's just because…
"The color of this sweet and sour pork ribs is quite good, you can tell a lot of effort went into the coloring, otherwise it couldn't be so perfect. But when you get closer, you can smell the sourness overpowering the sweetness. If you can control the ratio next time, this could be a very nice dish."
