Dreaming that you can't find shoes that suit you anywhere shows that dreamers are tired of sex.
The book only explains so much about what you said, which depends on your understanding.
I think it may be that you are not satisfied with the status quo in your heart and have some psychological changes. Maybe you are ready to make up your mind to make some kind of decision. But I suggest you think it over before you do it.
Don't do anything that you regret.