For me, being horny is akin to having just eaten something salty and feeling thirsty. You will usually drink, but if you're unable to, you'll still be fine for a while.
When I'm horny, I want to have sex, but it's not absolutely essential and I can do without.
Horniness is the thirst and it can be fully quenched by having sex with a woman and achieving orgasm. Like most sexually active men, I have a built-in procreative urge. This gives me a natural desire to impregnate a woman that I'm having sex with. Which is why condoms are important, you can trick your brain into feeling like you've achieved your natural purpose without actually doing it 😁