There are a lot of ways to "prove" you've got a deep connection, and they don't even have to be that intense. So those times when you see two people together and think, "I don't get it.
He wants someone that is going to make him feel comfortable, to complement his weaknesses.In the least gross way possible, your life partner really is meant to pick up where your parents leave off, so it's not crazy to think there's some overlap there.And support manifests itself in tons of different ways.If anyone could answer this question definitively, they'd be billionaires.They'd be at the top of the NYT bestsellers list forever with the Harry Potter of romantic self-help books.
Love has been called mysterious, it's been cited as the reason for existence, and it's even been called "a burning thing." Those are only three interpretations, and they're already all over the place. We've just gone a whole other layer deeper with that question, and we can't even define what love is.
It's like asking a student who failed out of med school to perform brain surgery.
And on top of that, all guys are different, all relationships are different, and what a guy wants is constantly changing as he grows.
So it's like that brain surgery is happening on a speeding train. If we want to get really basic, that cocktail of chemicals that seem to dominate most human interactions: dopamine, testosterone, and a few other unsung heroes flood the brain. if love is the bread, intimacy is the deli meat that makes the whole thing a sandwich.
Trying to answer "what makes guys fall in love" is a serious of impossible asks, but there are at least some bits of understanding that can help us out. Or, if you're not into science, let's just call it black magic, Cupid's arrow, or whatever the fuck happened in that Lindsay Lohan movie where she switches luck with Chris Pine (which, to be fair, may have also happened in real life on an on-set accident who knows). That's a statement that seems to make perfect sense at face value, but is probably also incredibly confusing when you start to examine it... But if, for whatever reason, he feels he can deeply trust you and talk to you and open up ( if he's got a hard time doing that with others), that can really get him on the path to love.
Even still, that only really answers the it happens in the first place. It's really conjecture the second we stop talking about the drinks our brain-bartender serves our body, but there seem to be a few old standbys. Intimacy is the foundation upon which you build you house of love and then you fill that full of deli meat, which is also intimacy. Maybe you were there for him after a death in the family, or you stuck by him when he felt like no one else would as he struggled to find a job.