It’s been a long time since they’ve been together. It’s not easy to remember stuff like that .
Then sorry for us, we will now have to wait at least 10-15 chapters till he realises
Because many people imitate Paula's voice and become her after Vincent can see in the past, it makes Vincent alert and look for more signs that point to the real Paula.
from the spoilers i saw, he built spent years trying to find paula but many people tried imitating her and be eventually got very suspicious of everyone
Oh I see
I have a question, how can he not recognise her voice, body odour like... Bro , you were blind , not deaf.