You sound like a sensitive sweetie. I am so sorry and feel your pain because I too have lived it. Frankly, I am suprised you are still trying after "But what hurt me was the way my partner treated me in those months - brutal intimacy, forgetting special anniversaries and not hearing when I said I had had a serious health scare. It was humiliating and painful".
I hope he he really trying hard to make up for his cruelty. Remember leapards can't change their spots. If not, are you sure you need more of the same?