If you are actually compatible with him Synastry-wise, go after what you want! Use a binding spell on her and create an aura of repulsion. Situations like these are why these techniques are on the site.
It's important to understand that a love spell follows the laws of will and resistance too. If you are White and you are using a love spell on a guy who is only attracted to Asian women, the spell is near-impossible to work, it will only work only if you are close to becoming a Goddess.
This is wrong. From where did you get this? You don't have to be anywhere near
Goddess to use these spells or even to break any couple up, not even close. You speak of the law of resistance but race-mixed couples are often hanging by a thread in any case. These two only started dating and the girl
should be with an East Asian man. It is wrong what these are doing to East Asian men, and what he is doing to white women.
The love spells in themselves require patience when using orgasm opposed to vibration, they are long-term projects that require daily reinforcement of sexual energy until the goal is reached and ideally good timing when starting, not just something you do once or even for a month.
Most white people are not even into other races in the first place and prolifically engaging in this is artificial. The reason most white men go with Asian women as a mentality (opposed to a one off or a fluke, i.e. 'she was pretty and she was there') is immaturity, resentment towards white women and point scoring, plain and simple. White women are the same when race-mixing. Sometimes, however, this is just the fluke.
Be aware, OP, where the above responses are correct is that IF he is really, really into Asians (beyond a level that normal people would theoretically go), you need to carefully
deliberate on what type of person this is. Because this in itself can be a sign of incompatibility. If he is flat out incompatible with you and would be hostile either way, don't do this.