You have gotten closer with Mithrun than anyone else, however you wanted it to be a bit more closer. So you shoot your shot and give out little hints about your little crush on him in hopes that the elf notices.

But problem is, he does not notice them at all- or rather was too oblivious to notice. Mithrun thinks that the way you compliment him, give him gifts, and take care of him are just how friends act.

You even said 'I like you' to him, but he again thought you were being friendly.