This is perplexing because of what he remembers of Shuanghua's abilities to sense remnant of resentful energy. Unless Shuanghua is sensing him, as a fierce corpse, the island may have fixed that by regenerating whatever is broken in him, so he's no longer dead and he's freed from Xue Yang's control. In that case, he'll gently have to explain to him what happened. One step at a time.

Calmly, "Yes, I have fuxue with me." The fact his best friend accepts him back, he's going to approach this gently to earn back his trust, knowing he's too trusting. His eyes are proof to that, and he needs to make amends.

"I did search for you and I found you at last. I'll happily explain and answer any questions you have. But first, do you have tea and food? I haven't eaten or drink anything since I arrived. I can cook and fix us lunch in the kitchen if you let me, and then I'll tell you what happened after you left."