My relationship with aquarius man - is it common?

I were in a few relationships before and my relationship with Aquarius man is totally different.

We are both nearly 30. And both of us works as manager, which makes us has some sort of "image" (strict, independent, rules,...)

I have to tell that my aquarius man and I both are weird. Everytime, we are together, we are like buddies. We tease each other like kids - make weird face, weird dance, anything totally opposite our social side.

And, there are few things about aquarius man that I noticed and I'm not sure it's common
1. He acted as if he doesnt notice I'm around when there are people. And, when just us, he started to poke me, pick on me, tease me, and starts saying a lot of funny weird joke
2. He acted as if he doesnt get physical attraction toward me. But when we're alone, our sex is amazing and he shows me he has such big desire.
3. Sometimes, he acted as if he's big kid wanting attention when he's sick or he got little injury. For example, he thought I didnt notice he got injury, then he tried to poke me and pointed and said he hurted himself. Or, when he got flu, he tried to make fake loud cough when I were around..
4. We actually like buddies. We went out grab some beers, play pool, watch sport, make comment on hot girls. And, when it comes to work related, we had serious conversation and we always agreed with each other.
5. When I were sad, he got nervous and he started make weird move to make me laugh. He even made fool of himself - like walking as a model, dancing like a duck, ...

And, there are much more..

I always thought when we're older, we will act as "adult" in relationship from thought to action.. Anyway, this makes him very special to me. I'm happy to have fun relationship like now.

Is it common? Your relationship with aquarius are the same?