The desire for another human

How can you get rid of desire (permanently) to be with another human? As in, there is a person that I can not ever be with. I’ve done SO many models on this and always eventually come to the place of acceptance. However, then when I see this person my stomach is filled with butterflies, my heart races, at times I can’t speak, I feel like my body is going to explode with joy, and then desire pops up. And then I have to start over again, model after model, doing the work to change my thoughts to get rid of the feelings. I would love some advice, it’s annoying me so much.