Unless you've been living under a rock or didn't follow anything about Paul's last tour, he did his ukelele tribute to George by playing 'Something', always prefacing things with how, after dinners at George's, the ukeleles came out. I would assume this meant that they saw each other socially. George was always kind of aloof, and I don't mean that in a derogatory way, he always came off as being somewhat serious. I thought they interacted just fine when they were together on 'Anthology'. Ringo was always kind of the glue with everyone. Paul visited George when he was sick, so I don't know where your notion that they didn't get along comes from.