Hurtful words

If you think you've abused him then stop, it's not hard. Say you're sorry if he ever felt like he was abused.

Me, I've been abused by my dad, and my ex girlfriend was both abused and abusive. It was tough to deal with.

I too was abused growing up, and got involved with abusive men. There are different types of abuse: physical, emotional, mental.
So now I'll find myself saying things to people that I regret, and it leaves me feeling less than at times.
Yet as long as you apologize and are determined to at least make an attempt or to not repeat it, you'll be fine.
But please notice I said "attempt." That's because if you've been abused in any form or fashion in your life it'll always be a battle unfortunately.
Warning: with attempts there will be periods of repeats. Try not to let that convince yourself that you'll never make it. You will.
You, me, and others like us are what are called "diamonds in the rough." We're indeed very special!

Using "Hurtful words" are not necessarily abusive behavior unless it's done repeatedly.

From your other posts, it would seem that your BF's behavior is aloof, selfish, distracted, or lazy. He could be in a depression or waiting for you to break up with him because he just doesn't have the courage to do it himself.

If you called him out on those behaviors and words were exchanged, it's not necessarily abuse. It may just be trying to provoke him into being honest.