<span class="mention" data-user-id="bDMNvxr2">@Fujoshi senpai</span>  <br />It's been quite some time since I read this part of the novel but if my memory serves me right I'm pretty sure <br />
<div class="spoiler"><div class="spoiler-toggle">Spoiler!</div><div class="spoiler-text">He fainted because he exerted too much power creating the fog/recreating the dragon forest to conceal them both, so he kinda passed out from using too much energy.</div></div>

If your wondering why he fainted I think it had smth to do with the herb he gave abel <br />Remember...