This feels forced af. Why does he act like she is entitled to please him?
"ah yes sure you are in the verge of being exposed and embarassed in school and yes you successfully handle it, but i dont like it" wtf he acts like a spoiled kid. Sure on one hand she kinda did it to amaze him but he didnt know about it yet he acts like she must. Its another story tho if theyre dating.
Also did he even see her in pain or screaming etc? How come his reaction is "wow you harmed yourself" instead of "you're an android right? So can you replace your arm? Wow thats cool" if he is truly a mecha fan like he always was?
It might be original and not the usual cliche, but the way the drama is brought is terrible.