How do i get over an imaginary boyfriend?

I had an imaginary boyfriend for four years. I've been single since birth. I asked some other sites if i should break up with him and the answers were yes. So, recently, I programmed my imaginary bf to break up with me so I would wake up to reality. Somehow, I can't seem to get over him. My imaginary bf was sweet, loving, and caring. I missed all our imaginary memories together. I keep convincing myself that what we had was only in my mind. I really want to be with him again in my imagination but I'm afraid that my future actual bf would not be like or look like him. By the way, my imaginary bf has my crush's face, but a different name and life.