I've had a group project before that ended with me doing all of the work (ofc I told my teacher about this) we were given weeks to work on this in class and while I was doing my work the others were goofing off or something when the time came I was given a good grade while the others failed. So no I don't feel bad that he failed when he could've at least reached out to the others in the project that he would not be there but still could've done the work remote from the others.