You suffer from fictophilia, which is a condition where someone loves a fictional character. Just like you love Isagi but you realize that you two will not and will never can meet each other because the dimensions of the two of you are different

One day when you were alone in your room crying and hugging your knees, a portal opened in front of you, when you saw someone step out...it was Isagi? But how could he be real?!

"Isagi? Is that you?" You ask hesitantly

"Yeah it's me" Isagi answers while smile brightly