I have this addiction with an "imaginary life"?

[tada]

It's not quite a problem; it's just you fantasizing about having a booming social life-- nothing more. You don't seem delusional at all, meaning you don't actually THINK that this "imaginary" life if your real life. You're just internally practicing escapism, where everything goes according to how you would have liked it to. It wouldn't sound as crazy to you if you took these thoughts and made them into a story of some kind. Then people would simply say that you are living vicariously through your story. The advice that comes with this is a different topic, involving getting out more, making friends, etc., which may be a whole different dilemma. But what you're doing given your situation is not abnormal.