A problem with a capricorn man please help

I started dating this cap gent in January but after a couple of months he was lovely, funny, not just a lust partner thing but a friendship. I saw it going somewhere. He started being funny thou and not replying nor making the effort to meet up etc. Turning things around on me and saying I want a girl to prove they are not like my ex which is offensive and said it works both ways. I said if your not interested then fine but he said he is... but busy with work, family etc and has renovations.

The problem is its been months and I know hes confused and still hurting... his ex he was married to for 16 years cheated on him and causes him problems when it comes to their children. His ex looks like me but I reassured him that Im not like her as Im very old fashioned and cheating especially while married is a big no no.

I have told him that I am not happy about being mucked around with nor blamed nor judged for his ex's actions. He is a good man but Ive told him that hes put me off him. Before I met him I was single for 7 years and happy. The moment I met him there was something and its strange even with his issuses which we all have them but his are big. There is a connection between us and I do care for him but I wont be mucked with.

Tomorrow, will be the first time I see him for 5 months as we're going to the same event. If I have to talk to him or likely if he speaks to me... how should I be with him? If I ignore him or just say hi when he says then go off.. will he understand and make the effort or not bother again?