It seems plausible, but I really hope not, cuz im most probably gonna end up crying so much, i cud fill a bowl or something bigger with my tears.... it will also probably cause me a lot of stress and headache and heartache ;-;
If that is the case, then maybe the final solution to the shadow realm is to clear the shadow realm inside the shadow realm by realizing your mistakes and changing the outcome, since that is how you clear shadow realms. Then we get 'Happy End' that way.
yo i just had a thought, what if the current world that Desir is living in is also a shadow world? the present where he went back 13 years?