Most Helpful Guy
First off, that's a character flaw that he happens to possess. Believe me, not all men do this. He seems a bit young, immature and perhaps has a very high opinion of himself. He also feels a sense of self entitlement feeling he is above you, when clearly his behavior tells the complete opposite.
Additionally, he may be trying to be macho, thinking it would impress the girl he was with as being more manly or masculine. At any rate it really just shows a strong level of immaturity.
So now his relationship failed, for what reason, I don't know, but I am sensing she left him. He is calling you now (and let me guess on this one) saying you weren't bad at all and he didn't really mean to say the things he said about you or treat you the way that he did. I am going to further guess that he's telling you that the things he said to your mutual friends are lies just to make him look bad.
At any rate, he's calling you now perhaps because he feels he can get back on your good side and he can mend things enough to where he can get a possible sexual relationship with you. Don't buy into it. His behavior is a better indicator of his character than anything and you can do much better than getting yourself caught back into his trap. Not to say that guys don't change, but generally seven months of verbal abuse isn't going to end overnight.
If you are contemplating possibly getting back with him (and I sincerely hope you're not) then I wouldn't let him get too close for a while, just to see how he has become after the break up. If you let him get too close then more than likely, he will say and do whatever it takes to stay in your good graces while he is probably looking for someone else.
I cannot stress enough that getting back with him will be a mistake. More likely than not it will only set you up for more emotional pain and possibly more verbal and emotional abuse later on down the road.