Someone said :
"Some people are attracted to both males and females. It shouldn't be so confusing."
It is when his advert says he's looking for women and not men or both. Try to keep up please.......
Its his classified, not yours, he can look for a man or a woman or a man and a woman, it is none of your business and he is under no obligation to explain it to you.
Do you really think that a bisexual person has to post a classified looking for both just to keep you happy? Maybe he just fancies some sex with a woman right now.