Firstly, how she "TREATED" him is highly appropriate, I'm scared to even ask you what would be the most suitable way to "treat" him in your eyes.
Secondly, there is a HUGE difference between "not being able to help AT ALL" and "physically not being able to help"
You said he couldn't help her "AT ALL" then listed 3 ways he could have helped. Do you see the discrepancies in your argument?
No one is saying he should jump in like he's Goku, what people or DISGUSTED by is how he ignore a girl being raped!
you defending the MC like this lets me know that you have lost sight of who the actual victim is here.
and please don't @ me unless you have an actually constructive argument as to why he "wouldn't be able to help her at all"

Really don't like how that was handled by the MC in this comic so far. Also dislike how she treated MC. But that didn't mean she deserved that to happen. Honestly didn't think it would do much good for him to try to stop that from happening directly as likelihood it would only cause him to be hospitalized as well as her being raped but he could have gotten help. He was being spiteful and since she stated that she didn't want to see him or for him to follow her he listened to her and didn't help her when he happened to see her.