Would you consider this abuse?

I had been into a pretty toxic relationship. Which I left.
My ex who I suspect is an abuser. Whenever I tried to have a discussion with her about her mistakes it would turn into a heated argument. I would find her saying offensive words to me.
Which would hurt me but she would rarely say sorry for her mistakes.
I would have to say sorry since I cared about saving the relationship.
And soon later, i started to walk on eggshells and supress my issues with her to avoid making her mad since she had anger issues which I told her to control but she didn't take responsibility of.
And for some reason she is always the victim and I am always the suspect. I cause all drama and all.
Would you consider this as an abuse or a normal argument?
I dont have any idea of how normal arguements are like.
Would you consider this abuse?
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