OP - Would you have even started this thread if the situation was identical to what it is now, but she didn't have any student loan debt, and you were just looking at $2k credit card debt and $2k savings? How you answer that question in your own head will tell you more (hopefully) than the responses you've received on this thread.
=====
The $2k and $2k intrigue me.
Did the credit card debt used to be $40k, and she's worked hard to pay it off? Or, like one of my close friends, has she been in $0.5k - £2k of credit card for the last 20 years, paying it off occasionally, but then it just creeps back up to what it was in the course of the next couple of months, rinse, repeat, rinse repeat?
The $2k of savings, was it amassed in a single month after she decided to try and start saving to turn things around, or was it saved 20 years ago and has been sat around gaining minmal interest for a long time and occasionally being used to pay off the low level perpetual credit card debt described above?
Forumites might find it absurd that some people do not have personalities that love doing tax research, spreadsheets, and math, but certain personality types really struggle with that stuff and it's like a giant brick wall for them.
I also feel that this needs addressing. None of this has to do with tax research or spreadsheets. As far as math is concerned it's simple. If you're not actually good at the math itself, just use a calculator and a pen and paper.
If you take home $2,000 a month, but you continually live off (spend) $2,000 - $2,500 a month, you're drowning. Alternatively, if you only live off $1,000 a month, then you're doing very well. This is the only level of maths she needs to understand.
This is what puts mustachians light years ahead of normal spendypants people. It's not math, or spreadsheets, or fancy investment strategies, or some greater understanding of economics. It's because they consistently SPEND LESS. When people say things like
"I wish I was good with money." or
"I wish I was financially savvy like you." it always amuses me, because money is not the issue. It's not money or anything fancy it's about spending. Plain and simple.
Spending less has nothing to do with money. Money is just notes, coins or more likely, numbers on some kind of screen. Spending less has everything to do with being able to curb the desire for all the goods and services that people typically buy with money. So when people talk about being good with money, what they really mean, although they obviously don't realise it, is being a non-spender.
There is no such thing as saving. There is spending or not spending.
There is no act of saving. What we typically think of as saving is simply the result of earning whatever you earn, and then
NOT spending it all.
You're automatically left with a surplus as a result of inaction (not spending) not as a result of an action (saving). Some people think that saving is moving money into a "savings account". Wrong. That's just shuffling money around online. Any idiot can transfer money from account A, to account B, to account C, and back to account A again. What puts mustachians ahead of the game is that they have the ability to amass the money (not spend) to invest in the first place.
And if we talk about moving money into Vanguard, I don't see that as saving, I see that as investing. Saving, to me, is about building up the surplus to invest in the first place. Investing is something you don't even get to consider unless you can do the requisite saving.
All we have here on this thread is a solid mustachian falling in love with a normal spendypants person. $80k of debt is a massive problem. There are other big issues on the horizon. In the future, if children enter the equation, will they be raised to be mustachians or idiot level spenders? Which parent will get the most input in that? Will the OP be a fan of standing by and watching his offspring being encouraged to go into debt because that's just what people do? Will he be content with simple and cheap weekends away whilst she longs for some lavish foreign holiday twice a year?
It seems really cold and mercenary to think only in terms of people's financial compatibility, but the fact is, we live on a planet where money is the primary means of survival and of doing pretty much anything. When two people are financially incompatible it will seep into every other area of their life together, and undermine everything.