No. Why?
why would it be strange?
haha for me it is. I sometimes catch myself thinking, "huh, I'm eating while reading porn," and then I stop myself. Same thing with listening to music while reading yaoi, as though somehow I don't want to remember a sex scene when I go back to listen to the song. There's certainly nothing wrong or strange about it but some people are really comfortable about anything and they can do what they want.
Eating while reading Yaoi.....is that strange?