If he didn't hate me before, he does now

OK so my ex and I were together for well over a year. He got a puppy like the last 2 months we were together. It was the cutest pup and loved to cuddle me. I could only see my ex on weekends because I was living in a dorm. Each time I came back, the pup looked more and more sick. I asked what was going on because he was really skinny. My ex told me it was Parvo and that he didn't have the money to take him to the vet so he was going to try and take care of it himself but that he was scared he was gonna lose the pup. I told him over and over to take him to a vet and have him put down if he had Parvo and he couldn't afford a vet. He kept saying the dog was on the upswing and that he was gonna get better. Sadly, I believed him. Then one night my mom sent me a picture and said that this dog had been found by his house and asked if it was his. I said it was and I called him and asked if he knew where his dog was. He told me the dog was dead and that he had buried him. I told him to go check the hole because someone had found the dog. He flipped his shit. The woman who found him took care of the dog and in 8 days it was back to a healthy weight and growing steadily. THE DOG DIDN'T HAVE PARVO. My ex had been starving the poor pup and I didn't even know..I felt awful for not insisting more that he go to a vet..I told the woman about it but left out his name. He broke up with me not long after and we got in a huge fight. He then went and slept with his ex (the one who he said "meant nothing" and she was "just a friend"). So i screamed at him because of that too. We kept getting in huge fights even after the break up. He said he hated me. The woman kept bugging me for his name and so i finally told her. Now he's being charged with animal cruelty and I'm sure he hates me now more than ever. He texted me threatening me for speaking to her and I just blew him off and told him to give me the $200 he owes me. Fuck you buddy! You're an awful person to people and to animals. So glad I didn't marry you and even more glad we didn't have kids together (we had been talking about me going off of my birth control to have children). EDIT. added a pic of the dog when he was first found. I hadn't seen him in two weeks because I'd been busy with school. And then my mom sent me this pic. Also added a pic of him after 8 days with his new family