We have patented two methods of breaking up with the INTp woman: quick, and slow.
With the slow method you very clearly "become stupid": you disregard historical examples, you laugh at inconvenient moments, and you yawn when listening to her. The number of dates and telephone calls is decreased, and the relationship gradually comes to nothing (which even pleases the INTp, since her intuition was telling her it was all pointless anyway). Second method - single-time: you begin the stormy explanation of the relationship, after stating that all her "high ideas" are useless for the real world. If you manage to make her reach that point - the explosion of emotions will be, to put it mildly, not controlled. The INTp woman will no longer cross your path.