Drowning Marriage

So let me rant and maybe someone can help me or give me advice.

My husband and I haven’t even been married a year yet but we’ve been together almost 2 years. Well we had this huge fight about bills basically. I just got a new car back in August and it’s like $500 a month. We agreed on $300 a month but I couldn’t get the car I wanted and it was for my birthday. Well I’m trying to find another job to pay for it because I work 8 hours and he works 12 hours. He makes more money than me and he pays most of the bills. He told me that if I can’t find a way to help pay for the car then he is gonna be done cause he is tired of paying everything and not getting anything in return. E live paycheck to paycheck so it’s a struggle. I’ve been applying to jobs constantly, had 2 interviews but haven’t heard anything back. Honestly I don’t know what to do anymore. I don’t know how to get any money if a job won’t call me back. I don’t want to lose my husband. He is everything to me. But I can’t stand the fighting with him anymore. I’m just lost right now. I don’t know what to do anymore.