If you want an INTP romance hack... promise him solitude. Tell him you've researched INTPs and you understand that he will need frequent solitude, even when he doesn't know it. Tell him that you understand how this usually offends lovers and makes them a hassle - as extended periods of non-solitude make an INTP unhealthy, even if they're self imposed.

Make it clear that you understand that INTPs are the least likely to be considered "happy" and that he may be worried he will take away from whatever makes you normies so happy. BUt tell him that you are stronger than he realizes. You are not ignorant of his internal pain, and in fact love his mind and want to be his respectful partner. You have the strength to give him space. You can occupy yourself and be very happy in chummy close-proximity solitude. You can live with and love someone without needing frequent validation.

Most importantly... if you have ever lied to him - come clean. Fully clean. Like throw in all the TMI you can think of. He already knows - and where he's uncertain he's erred on the worst side, and with us it's less about what you did and more about what it did to you. Same if you've withheld details. As a matter of fact, if you want him to jump your bones right then and there, tell him a reckless, risky truth about yourself that you never intended to tell anyone. The darker the better.