How is it possible to have an emotional connection with someone without wanting to be a in a relationship?

So long story short.. I have been talking to this guys for a while. We have a really strong emotional connection and we also have sex with each other.

Recently I brought up the idea to get into a relationship with him. Because after all. We act like we are in one, without the label.

But he declined it saying: "yes we have a really strong emotional connection and I enjoy having sex with you, I just don't think I am in love with you. You are just my best friend"

When I tried to go no contact he begged me to stay saying he is afraid to lose his best friend.

Is he confused about his feeling? Is he leading me on? What could be the possibility to act that way..
How is it possible to have an emotional connection with someone without wanting to be a in a relationship?
Post Opinion