Only if we were raised by someone who taught us to watch how our love interests handle finances can we escape what happened to the woman who wrote this story. Honestly, that would be pretty clever advice, but sadly, very few people actually get it.
We grow up watching romantic movies that don't resemble reality at all, so when we feel attracted to someone, we project all these fantasies onto them, and forget to check whether they clean up after themselves or whether they handle money well enough to live with us.
The cultural narrative surrounding love is filled with fantasies, and when we are at the beginning of a romantic relationship, we see everything through rose-tinted glasses. We tend to think our partners can do no wrong and that we're perfect for each other.
That said, not everything can be prevented, and it's only natural to find some things we don't like about our partners after some time sharing our lives with them. What I think we can prevent is how hard we will fall. Let's all collectively learn to check the right things before jumping into marriage!
Luckily, nowadays marriages can be undone. If you really don't like how your partner handles finances but like how he handles everything else, you can split your bills from theirs or live separately! We live in a wonderful time for alternative couples. You just have to recover from the tough blow first.
The first part of love always ends; the fun part is what you do with it afterwards, whether you choose to work on it or run away. It's all part of life, and disillusionment will definitely happen sometimes. What would you, dear reader, do in her situation?