Fiancé can't save money!!

So irritated right now!! My fiancé sold his car today and the first thing he does is take his friends out to eat. He barely has any money left from his paycheck after he pays his bills. So usually he has to ask me for gas money or I have to buy him food/drinks because he doesn't have money. Plus his friends make way more money than him and can buy their own food.... We have a baby on the way and I'm trying to save money to buy baby stuff. He hasn't contributed at all! He didn't even tell me he was going to take his friends out today. He's actually supposed to be at work right now but he left early to hang out with them 😡😡😡