The Gemara in Yevamos (53b) and Sanhedrin (74b) tells us the nature of a Man when it comes to sexual relations:
אין קישוי אלא לדעת
That a man cannot develop or maintain an erection without his knowledge or intent to do so.
The Gemara also tells us in contrast with man, that a woman is קרקע עולם. Meaning that she is always considered as a passive actor.
A man is always considered to be in the proverbial "drivers seat" when it comes to the act of Relations.
Technically, a woman is always the receiver and a man the giver.
This is why a man cannot be raped. For to maintain his erection implies he also intends on doing the act.
Now while פיתוי - seduction - is not rape, As it is consensual in nature. Still as The Meforshim explain (Rashi, Ramban etc. מדבר על ליבה) it implies that one was needed to be convinced and pushed into the consensual act.
If a man is subject to פיתוי it would would contradict the statement above of אין קישוי אלא לדעת which means that a Man is 100% fully intentional in his act without need for convincing.
Furthermore, as previously mentioned, a woman is a passive player, thus by definition, she cannot be a seducer in the act, which implies an active role.