I should clarify that I was agreeing with his interpretation of T’Pring’s perspective, not agreeing that her perspective was wholly correct. She was focusing on her perception that he didn’t trust her and she was left out while all his friends knew what was going on, and yes, anyone would be upset about that. I can see how that would be a major issue for her, and also see how Spock wouldn’t want to dump that situation on her when she was already completely exhausted from dealing with her mother. Emotionally, it was a Kobayashi-Maru scenario and he did the best he could at that point. I think she’d be able to see that after she gets over the shock. But now there’s Chapel, so…
They kind of explained T’Pring’s family wanting the connection with Sarek, but I don’t recall any motivation for Sarek’s family to reciprocate that. There should be one, or it’s nothing but lazy writing to create pointless drama.