Nah i agree with the friend... she has the right to be angry
Uptill this point hana keep on getting the shorter end of the stick. Yuzuru vent his anger on her and ditching her from time to time but she always be the one who reach out to him first and mend the relationship again and again. have we ever see yuzuru apologies??? He never communicates with her. Like dude talk just talk with each other. But nope he never did.
The dude never tries to treat her better and taken her kindess for granted. No shit thats not how relationship works... it makes sense shes snapped tbh...