[It doesn't really bring him any sense of joy or fulfillment. In fact, Gilgamesh was quite certain his time was much better off spent doing something else—anything else. But he feels compelled to stay and watch all the same, because Setsuna had made it sound so important. Being the childish King he was, he'd feel envious being left out. As he said, if they had to do it, he would make certain it was done up to his impeccable standards, and that was that.]

I hope you are satisfied. We look like a pair of bleeding hearts.

[Though there's not much fire to his words as he says it, and he leans over, and touches the flower, brushing Setsuna's fingers in the process. There. Mana to spare. He'd have to be thankful for it now. At least the rose looks the slightest bit brighter for their efforts, even if it didn't matter at all.]

Honestly, worrying over such meaningless things... you'll only cause concern for your comrades.

[Probably had, in the past. But again, Gilgamesh's chiding comes more gently than usual, to the point it sounds more like commiserating than anything else.]