>Only 2D is able to make me feel special feelings even after cumming
I feel the same way as you do, we only feel attraction to real women because of our natural instinct to mate with them but once we have relieved ourselves of this desire they have nothing of value to give to us, at least not in the modern era where women feel too good to give their partner something in return for his love. But 2D girls are cheerful, sweet, caring, funny, they have all these non-sexual features that most men desire in women but do not truly exist in the 3D realm which is why they can still make you feel nice inside after you came.
I hope that's enough of an answer for you.