It seems like one of those dynamics that gets started, and spirals until confronted. I doubt, in his mind, he is giving you less than positive regard, but he is misattuning and blowing it with you anyway. You should let him know. We have all these threads on how defensive therapists ironically become when put on the spot, so maybe wait for an incident to come up and say hey that hurts my feelings? I feel less close to you than I used to and it makes me sad/ feel less like coming to therapy?