This point is mutual. When you backed up and swiped, yumendelang didn’t follow you to block you. You still swiped points in place, so it didn’t constitute a bullet block.
The following is a quote from HapigT's speech at 2023-05-03 2:31:00:
There are bullets in the front, but occasionally they will block each other's bullets. You walk away behind and he doesn't walk over to block you. In the end, you also fly at a different point. yumen_de_lang is still brushing there and did not say that he has been following you to block your bullets. It is not accepted.