I'm not sure if he brings me 'joy'as such.
He brings me safety, comfort, security, confidence, friendship and team-work.
He is my stability in an unstable world, but I am his. He is my very best friend, we were friends before we were lovers.
We have never laughed at the same things, don't have vaguely similar interests, but we parent in the same way, we enjoy talking to each other (most of the time!) We understand each other, we have worked through so much over the last 10 years.
Oh yes, I still fancy him so much, he has only got to touch me and I melt. We 'fit' so well, sex might not happen as much as it used to (the joys of teens in the house) but when it does, its the best sex I have ever had.
I'm not sure if that means that I am in love with him, but whatever it is, it works for me