you know that feeling that you have a feelings for someone but can't say it to them, afraid you'll lose them and can't go back to the relationship you had before, that's what i think eren had here to levi, that's why he continues to say sorry because all the things that levi do to him to train him and he (eren) suddenly became aware of his feelings and thinks that its not right ಥ_ಥ
you know that feeling that you have a feelings for someone but can't say it to them, afraid you'll lose them and can't go back to the relationship you had before, that's what i think eren had here to levi, that's why he continues to say sorry because all the things that levi do to him to train him and he (eren) suddenly became aware of his feelings and thinks that its not right ಥ_ಥ