First, I am sorry for your loss. No matter how long it has been since you two were together, he continued and continues to be an important piece of your life, and it is hard to have that move into a different state of being.
He is still around you. I have a sensation of being stroked along a shoulder, as if he’s standing behind you and stroking your hair. Yes, you do have a soul connection, but please do not think of him as your only one. (He is asking me to say this.) He was part of the early stages of the development of your heart. Others will be more in line with the person you have grown into.