What type of relation/connection would this be with my ex?

My ex and I recently started talking again. And we both realized something, that there is a different connection there for us

1) That we can always cheer eachother up no matter what happens, and when no one else can. And its a very quick turn around, from sad and crying to laughing and much happier in minutes

2) When stuff happens, we tend to worry about the other, like blizzards, tornados, shootings etc

3) Can feel/sense when one of us is sad or otherwise not doing well, even when when we are no contact, we still can sense it

4) We tend to feel the same emotions when one of us is happy/sad or anything else

5) Realized that we tend to enjoy each others presence, even when its as simple as being near each other. We dont need anything extravagant to be happy when together
What type of relation/connection would this be with my ex?
Post Opinion