When you finally come to grips with the idea that much of Western (or modern, capitalist/consumerist) society exists within a low-level mental cloud of illusory belief systems, you will realize that there is a lot that you need to unlearn, in an effort to reframe your world as you know it.
I am less a fan of the word “illusion” every time I read it, especially in the context of spiritual teaching and philosophy.
It’s likely most of us have at some point, or are perhaps currently dealing with aspects of unfulfilled, or broken romance — with life, with a partner, or with a dreamy, dream, dream . . . fantasy.