Christ. Cable, hulu, and netflix? Ain't that some shit. Pick one of those. Or none of those. Internet can be had for thirty bucks a month.
Cell phone bill is outrageous. If T-mobile buys out your contract you can drop that to 80 tomorrow. If you just break the contract, pay early termination, and get republic wireless or ting, you could drop that to 50... or 25.
Food is quite a lot too. You can cut that in half, with a bit of work, in the next two months.
How much money is left on your car? How much is it worth? Yes, you should probably sell it and get something used for 3-5k instead.
Your income level looks like you're both working full-time for around $10/hr. Is that correct? If so, it is literally costing you twelve hours of your life every month to have cable, netflix, and hulu. Twenty five hours of your life every month to eat too much / too fancy. Fifteen hours of your life to have no better cell service than you can get elsewhere. When you come home, get the fuck out of the house, go for a long walk every day, breathe the fresh air, you'll find yourself not needing what almost looks like an addiction to media and screens. You can't bloody afford it. You're not "not living frugally", you are "wasting money while bankrupt".
You're literally considering not paying for your car, and getting it repossessed, because "she wants cable and isn't interested in dropping it." Cable, or a vehicle. Cable, or a vehicle. Hmm, tough choice.