My baby deserved better 🥺

I can't believe how guilty I feel. I have tried to be frugal with my child, like only got secondhand clothes for him and even saving a water bottle that we received as a gift so that he could use it to school someday. Only to find out my partner has been covering all of his parents' bills as if he was an only child. He has siblings but did not even bother to even offer to pay for those bills and groceries equally and he thinks that's ok coz he is the only son. But that was supposed to be OUR money, even if he was the only one who worked for it and I stayed home to care for our baby. It felt so unfair that OUR money is leaking towards his parents' and they even have the time to do gambling games as a hobby while my mom never asked for any cent from me but still helped out with taking care of our baby. I feel guilty for my poor little baby. If that would be the case then I will always demand the best for my baby next time. If we aren't saving anything anyway might as well give our child the best. 🥺