"You might want to sit down." It would also help him get his thoughts in order. He didn't want things to get out of order. He didn't want to get ahead of himself.
Tim only took brief glances at TJ. He didn't want to lose his nerve either. And he knew that if he looked at him too long that he'd just let things deteriorate. And his Dad had given him hope that maybe there was a way to save the marriage. All he had to do is talk.