This response is so boot-lickingly simplistic and lacking in context and nuance. I wish I could get to live in the world where this blanket statement just made everything okay again. It’s almost as if you actually have no reasonable counter to the points raised by the commentor.
It absolutely happens. Most of my long term partners were that “sparks at first sight” energy. In high school, my first girlfriend and I saw each other from across the bus waiting zone, and it was on. Even our parents were blown away by our chemistry. Unfortunately, she died of acute lymphocytic leukemia two years later. My first wife and I spotted each other from across a nightclub dancefloor. I thought she gave me a fake phone number, but turned out to be real. I was on a bike tour, stopped at a winery, and met an amazing woman who became my second wife 18 months later.
But here’s the problem with that instant connection: it’s almost always a very bad sign. Those instant sparks are indicative of non-verbal cues that both people fit a mutually faulty template. For people who have unaddressed trauma, that template is just waiting to be matched, and it produces disastrous results in the majority of relationships. John Gottman at University of Washington has studied intimate interpersonal dynamics in depth; he and his lab have literally written the book(s) on how to have healthy, fulfilling relationships. Spoiler alert: instant attraction should be a red flag for about 99% of the population.
But yeah, get professional help.