This is most likely correct if you had repented sincerely and Allah knows that from you and there is no legitimate way of making your brother forgive you.

I’ve read from Ibnul Qayyim (rh) that if you violate against the rights of a muslim then in fact you have violated against two rights. 1) against the right of Allah 2) the right of your brother. Concerning Allahs right you have to repent sincerely and concerning your brother you have to restore his rights. So If I repent to Allah sincerely but my brother won’t forgive me then is it correct to say that I have to repay him in the akhira with my hassanat but besides that Allah won’t punish me additionally (wether in the grave or in hell) since at least I repented to HIM (swt) concerning HIS (swt) right?

Torment and Blessing in the Grave | January 28, 2014 4:49 am
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Is reciting surah mulk every night for the purpose of decreasing the torment of the grave a right thing to do.As i heard that the scholars do not agree if its an authentic sunnah.
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After a person dies and begins the life from barzah, does the dead person stay in his grave or does he go to another place where he meets other dead people?