Salad sauce is usually made of salad oil. You don't know how effective olive oil is, and you add honey and peanut butter.

Thinning has nothing to do with thickener. Maybe you put too much oil in it, which exceeds the capacity of the yolk.

How much oil is added to an egg yolk is proportional, which may have reached the limit. At this time, if you add yogurt, it may become thinner. You can also try adding some three-flower egg milk.