Does love always need a reason?

Tbh, i want your opinions cause i am sure that INFJs are experts about love.

Ok i thought about this question a lot

Whenever i ask myself " why i love him ? And why that much?" Myself say " how can't you love him?, he is an amazing person, he helped you a lot and was there when you needed him and asked for help, he tried more than his best to help, he is cute and adorable, he is mature too, he is handsome, he is clueless sometimes,he is understanding, he is kind, you can depend on him, he is funny, he is benevolent, he is just so out of this world"

But in the same time i don't feel like one of those is the reason why i love him, i just feel like i love him cause i love him, so does love need a reason?

Does love at first sight real?

I think it was love at first sight, tbh i didn't believe in it before meeting him. The moment i saw him i felt peace but i felt lost in the same time. Whenever i try to remember the first time i saw him i can't remember what we talked about i just remember him and me looking at him like am looking at very precious breakable thing i need to protect. Whenever i try to remember this moment i just see us from far like i am a third person looking at two persons talking with each other, i can see myself standing in front of him looking at him amazed and lost while trying to pretend like i am normal and him talking to me but can't hear what he is saying.

Does love at first sight look like this ?