Listen, I get that he didn't love any girl more than the others, and since we can't have a harem route outside very special circumstances, but it's still a disappointment.
I do hope someday there will be a brave author that just chooses the "lets just all be friends route", because I can accept that sometimes the MC just don't have a favorite girl, and since he doesn't want to lose anyone he choses to keep things platonic and actually be just friends, that would be good ending I think, I wonder if anyone has tried that.