Is it so hard for a man to apologize?

Are woman more easily able to say sorry than men are? Whenever my boyfriend and I get into an argument, it seems like I can apologize 8 times without him taking accountability for his part in things or ever hearing a sorry from him about how he also handled something poorly. In general, I know I am not doing anything purposely wrong and when he brings up that I hurt his feelings somehow I immediately address it, apologize, and express how I would do better in the future, however it seems I never get this back from him. If I bring up something that he does that hurts my feelings, he always stands by what he did and how either I'm being too sensitive or how he doesn't see what's wrong with it and then argues back about previous issues in the past where I've done something wrong in his eyes and we repeat circles and circles like this without ever getting anywhere. Multiple times during an argument I try to stop any blaming between us and I try to focus on how do we move forward, what can we agree to do better or compromise on and somehow he refuses to take accountability for his part in things and keeps bringing it back to past mistakes he thinks that I have made, no matter how much I've explained my point of view, apologized etc. It seems so one sided and I don't know how to get him to share the accountability in these situations, let alone drag an apology from him if he doesn't mean it.

Is it so hard for a man to apologize?
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