There was many things Twilight could accept about her fiancee. For example, her weird habit of hording twelve different flavors and styles of toothpaste, or her surprisingly low opinion on watching what one ate. She could also accept the fact that she was dating a professional athlete, and as such, would be away for long periods of time.
She could also, begrudgingly, accept that Rainbow Dash was physically affectionate. She was a physical pony, after all, and often, rather than use her words to convey her emotions, she'd just go with some gesture; a hug here, a nuzzle there. It was simply her way of doing things, and Twilight wouldn't change her for it.
However, that made her, in a surprising twist, slightly dread when Rainbow came back from a tour. Not because she had to see her fiancee, never. She loved her with all her heart. The true reason was because of the spectacle Rainbow would cause the instant she saw her.
"Dash, let me down. Please?"
The Rainbow mare, however, would not be denied, and instead continued to hold Twilight in a crushing, over-the-top hug, nuzzling her, all the while.
"No. I haven't seen you in two weeks, Twi. Two weeks!"
Twilight sighed, and rolled her eyes at the tone Rainbow used, all the while trying to keep her composure. She behaved as if they had been estranged for almost a decade, rather than fourteen days.
"That's not- Ow! Not a reason to maul me, Dash!"
Rainbow didn't respond, and Twilight let out a strained sigh, before suddenly flushing a bright crimson.
"Dash! Don't chew on my ear!"
The mare just gave a small scoff, but refused to release her ear, all the same. "Why na?"
Twilight simply continued to blush, unable to word an answer as the pair gained several irritated looks from the other ponies at the train station. Their looks of disapproval were completely ignored by Dash, though, and after another moment of squirming, The Princess finally gave up, and let out a beleaguered sigh.