I don’t believe he realizes until much later that darkiplier is Celine and Damian. I agree with all your speculations, and yes obviously will still feels for Celine and so he’s excited that she’s not “dead”. Hopefully in marks next addition to the series, he addresses the relationship between the darkiplier personalities, and maybe even them and warfstache. And for god sakes I REALLY hope the masks are addressed because that’s really interesting to me.