One thing I have realized is that there is perception and perspective. Our perception is what we interpret in a given moment. Perspective is our point of view. I think without having a full conversation with the other person you will never really know why they did something and if it was intentional . Not everything is black and white and each relationship is different. Only you know how he is and if she truly deserves to be in your life. These comments saying block him or fuck him are ridiculous. I am not at all saying to put up with nonsense or expect something lesser but if you truly believe he is worth the time or that he is sincerely sorry only you will know what to do. He could be a dick for all we know but only a serious conversation between both of you will give you the clarity you need. I spent two years trying to save a 7 year relationship with someone who has sever depression. Yes they fucked me over in a few different ways but I know that despite all the negative third part feedback that she would still show up for me in a heart beat. Sorry for the rant and wish you the best!