Well, it seems like it is, for him, a non-committal relationship wherein you see him when you see him. If you're looking to "adjust" aspects of the relationship, then I guess you're not willing to accept it for what it is. So, just telling yourself, "It is what it is," is not going to be helpful. I'm reminded of what Carrie Fisher said in an interview about her father. At the end of his life he was very dependent on her, she had become the parent and he the child. The interviewer asked her if that had been satisifying for her. She replied something like, "That was the relationship that was available, and I took it gladly."