She may not be too attenctive to his movements and his body language in the dark of their tent but his tone of voice seems to finally alarm her. The summoner sits up, still wrapped in her poor 'blanket' and stares at his back for a long moment before leaning closer and gently placing a hand on his shoulder. Had he been so tense the whole time? the muscles under her fingers feel like rocks and this is just so... unexpected.

"That's not... nothing." she murmurs leaning closer and placing even her other hand on his body, gently petting his side as she's do with an upset chocobo to calm it down. So much for listening Rosa and her advices, mh? Still his stiffness and the way he breather further confirm Rydia that he's not okay... and to be honest that's scary. Kain is Kain, he's the serious dragoon who barely shows any emotion when Rosa isn't around, Kain isn't supposed to be like this. In her mind it's wrong to see Kain one step from crying, what is she supposed to do?

"You can..." Rydia looks around in the dark, like expecting some kind of enlightment from the tent but in the end it's just her, her limited knowledge of how humans do things and a dragoon who shouldn't cry that's on the verge of tears. Perhaps it's just worth acting like she would in any other similar situation between her people "...uhn... cry, if you want. I won't tell anyone." Her hand moves from his shoulder to his head and there the summoner starts petting and caressing his hair, hopefully this won't upset him even more.

"Do you want to tell me what's wrong?"