Let’s examine this:

Miss is a word for a woman that has not been married.

Mrs. is an abbreviation of the word Mistress, used as a title for a woman that is married or widowed.

Ms. is a title used for a woman whose marital status is unknown or irrelevant (as in business).

The letters Ms. are not an abbreviation of a word, they are an amalgamation drawn from the letters of Miss and Mrs.

On the other hand, a man is just a mister (Mr.)

You see men don’t have to determine their sexual availability like women.