@Tonikill1
That was one of my hypothesis during the beginning, but so much shit happened from then that I had simply left it (the theory) in the shelf.
And yeah... I guess is kinda hard to feel true love for a dream (even if a dream full of wonderful gals), and in the end MC's friend is the girl who without power of libido and anything loved him in the real world, and stayed with him (crippled and all), besides falling too and being his friend for years even before. So it's understandable. But Lumi being heartbroken is too. Also when the fak was the last time they did it together? And I ain't counting the gangbangs, I mean one-on-one. It's been ages. Even so she is the most dedicated to Youta, and don't get a different treatment from the others, even if he shouldn't actually give special treatment... after all, it was mostly fine with Lumi (or bearable) before he said he loved his childhood friend.