No help from family

Kay

So my significant others mom and sister flew in yesterday to visit. I just had a new baby a week ago. My significant other appeared withdrawn after picking up dinner for everyome with his brother and i knew ot was a money issue since we are kind of tight right now. When we got home, he told me how he was annoyed that his mother spent around $10,000 on both of her dogs in the last month because of vet bills. He kept saying "its annoying because she never took care of my siblings and i that well. We are struggling and it costs me money to have them here visiting. She hasnt done anything for me." And going on about how his mother would rather spend that money on her dogs and take care of them rather than helping us and comparing her care for the dogs to how she cared for his siblings and him as a child. He then vented about how she keeps offering to pay fpr this expensive eye surgery he needs, but how he would much rather have her pay for a new car we need because both our cars are a jumpstart away from dying. His mom comes to visits and automatically wants to go shopping and splurge when we dont have that luxury, and she claims she is here to help but all she does is sit down, take pictures of the kids and posts it on social media talking about them but not actually being present. I feel bad for my s/o because i see what he means when je would say his mother never took good care of them. I thimk he is just frustrated that his mother cant open her eyes and see we are struggling, but then again it isnt her fault that we are struggling. He doesnt want to have to ask for help, and he said he was grateful that my mother (who doesnt have alot of money) went out of her way to get us a new car even though its older and what not but his mother cant offer to do anything. When he was youmger, she offered to help finance a car and she never did which got my s/o into debt and i feel like he has a lot of resentment towards her. He was being hostile when she was asking us to go shopping and i didnt say anythimg because she obviously couldnt tell that something was upsetting my s/o. Idk, i just feel so bad for him