For the past 3 months ive gotten so bad that i havent kissed my boyfriend, sometimes ill give him a peck because i feel so bad that im doing this to him.

My fear is that since he has a strong stomach and eats food thats been out for hours or even days on the counter, i will get sick if i kiss him. I am really careful with what i ate so i figured if i kiss him i can get sick because if not used to eating the way he does.

Is this irrational?? is the only way of getting sick is by kissing him while he is eating?