Dear Kurt,
I hope you had fun! Y’know Nick? He and I saw the Katy Perry movie. You’d have loved it.
-Blaine
Blaine doesn’t talk about how he’d really only gone with Nick because his hair was styled differently and it almost resembled Kurt’s. He doesn’t talk about how wrong it had felt when Nick had tossed an arm around his shoulder. He can’t say that when Nick kissed him at the end of the date it had been the second most disconcerting kiss of his entire life (second only to the kiss that occurred at Rachel Berry’s Trainwreck Extravaganza.) He can’t talk about how wrong it had tasted or how rough Nick’s lips had been. He couldn’t say that.

Dear Blaine,
I’m glad you enjoyed it. I’m heading out for Ohio today. Right now actually. I had some downtime before boarding and I figured I’d write this and mail it to you when I landed. Hope your x-mas is good, and your New Year's even better.
-Kurt
He doesn’t talk about how he’s worried about how to get Blaine’s present to him. Doesn’t mention that he’d bought him two weeks before the break-up. But they’re Katy Perry, Blaine’s favorite, not Kurt’s. Kurt doesn’t mention that he spent a whole afternoon crying to Teenage Dream when they showed up in his mail three days after the whole debacle. He couldn’t say that.