When do you know that you are connected with your partner

When you don't need to speak to understand

We met when I finished a quote from a really cheesy movie for her, a B rate flick almost no one has seen. After a few minutes of talking, though she did an admirable job of hiding it, I could tell she was profoundly depressed. I know that many people say things like, "Don't go after broken girls." "You can't fix people." "Don't make it your problem." "It's not your responsibility." etc, etc. And usually I take that advice, but something clicked in my head, and I just though, "No, I HAVE to help her. My mind is made up, whatever it takes." I can't give you a rational explanation of why, but in just those few minutes I felt closer to her than anyone before. But it wasn't just me helping her. Doing it gave me a sense of purpose. It gave me the patience and thoughtfulness I would need. It made me put someone ahead of myself. It made me better than I was.

When we parted from that conversation, she politely thanked me for the evening and told me, "We're not going to be friends." But she didn't know that it wasn't just us. The two of us were caught in some kind of force of nature. I couldn't stop. 5 years later she's doing so much better. Happy, healthy, good job. I couldn't be prouder.

TL;DR: After about 5 minutes of talking to her.

when you are caressing them, like running your hand lightly over their arm or shoulder. That not quite a tickle, but feels good touching thing. When you do this and start to notice your arm doesn't ever seem to get tired.

You just know... there's this invisible force that connects you and things just feel connected.
I never understood it, but I guess since he feels the same way, we both have the same connection

we wear matching adidas

You just know!