Loki absolutely hated Mobius's boyfriend. It wasn't really personal, so to speak, it was just that Loki was going to hate anyone Mobius dated.
For one, and the biggest reason: His boyfriend was not Loki.
For another, nobody was going to be good enough for Mobius in Loki's eyes. Not even Loki himself!
And for a third, he couldn't put his finger on it but this man just rubbed him the wrong way.
At first Loki had thought that it was because he was jealous. Which he definitely was. But no...no, that wasn't the reason. He would have disliked this man even if he'd never shown the slightest bit of interest in Mobius or vice versa.
Finally, though, he found out in a rather shocking way just why he disliked this man so much as he overheard him talking about Mobius in a rather derogatory way. This man was just having fun. He was just using Mobius.
And oh. Oh no, that could not stand. Mobius was quite serious about this lover and Loki knew for a fact Mobius had developed real feelings for this cad at this point. This was going to devastate Mobius, and Loki felt real and true hate find its way into his heart for this creature who thought he could treat Mobius like a plaything.
This man may not have realized it, but he had just declared war. And Loki was a master strategist and a seasoned warrior. And this...this was his battleground. A war of wit, intrigue, deception, and mischief.
This cretin would pay. Loki would make certain of that. The mischief he was going to make over this would not be the simple, cute little pranks he tended to pull here so far. No, not at all.
He had gone and created the tree, stayed away for as long as he did, to give Mobius a chance at a real life and true choice. And he comes back hundreds of years later only to find that someone had been using Mobius this whole time? Playing with his emotions? And was still at it, dared to continue right under Loki's nose?
Did he think Loki wouldn't find out? Did he think Loki would do nothing about it when he did find out?
Well, this lout had another thing coming. And Loki would take great pleasure in cutting this little worm down to size.