the crow tengu is clever that she collected information about man in that way she does. maybe she can find with this the right man as husband who like her too and regain her feelings if she is interested with him. in that case she musn´t kidnap him to have sex with him i don´t think it´s so difficult for monstergirls to a find who man likes her if they not attack him. maybe some other monstergirls catch man and want to know if he is married, have children or are important to other people. if she only want sex to bear children get enery or semen and let him go after she has sex with him it´s no problem and avoid problems that cause in that way. i think they know if a man says the truth or lying her when gave her an answer. but even if she let him go maybe some years later a small monstergirls stands for him and say: hello father! i´am your daugther!