I don't believe I'd worry about the term - "normal"..... this term can be ever changing, depending on the circumstances and the person within those circumstances
you are what you are and you do what you do....
with that said-- I think it's quite common for some to not have "feelings" about abuse..... I know I've kept feelings out of the picture... it's been easier for me to be "numb".... that's how I've coped.
Maybe that's how you've coped too? Some rage in anger, some cry in pain and others don't have much feeling or don't have access to it.....
wonder, has your therapist talked much about your ability to feel?... maybe that's something to work on?
best to you
fins