^Hm...that's a difference of interpretation there. You may be right, but I felt more like he didn't want to deal with "the boy" on a personal level, or even talk about him in that way.
Edit: Addendum: Picard and Wesley may have had the time they shared in "The Samaritan Snare," but there was still plenty of awkwardness between them, especially where Jack was concerned, in "The Bonding," which directly followed "Evolution." Picard was relating Wesley to Jack in the "Evolution" scene. He must have been doing so to himself if he said so to Beverly after only the slightest prompt.
However, I do think, now that rosyrock has mentioned it, that Picard might have had some awkwardness being personal with Beverly at that point. As Crusher herself would later say in "Lessons," Picard is "...a private person, but not isolated." She may have reached a little too far toward that privacy a little too soon, just being the warm person that she is.