I like putting snot on my pillowcase

Is it normal normal for me to do this? is it just some weird habit? i have the same pillowcase that i used when i was a baby. it’s the only pillowcase i’ve ever used. it’s still perfectly usable and all that. but ever since i was little i’ve liked to rub my fingers and the edge of it. the part where you put the pillow in it, the seams there... i like to rub my fingers on it. it’s just a fidgety habit i’ve had since i was a baby. but for the past 2 years or so when my nose is runny, i’ve put snot on the edge of it. and when it dries it makes the edges rough. and i just like the feeling when i rub it on my fingers. is this weird? i wash the pillow case very often because of it. but am i weirdo or something for doing this? please honest answers. i’m kind of self conscious about it.