One size does not fit all, so make your own choices - I do subscribe to some of the underlying principles of the advice, one of which I think of as "you can't take care of someone else if you aren't taking care of yourself".
If you're consistently failing with points 1 and 2, it's worth setting some hard limits on when to abandon this project in search of a better one. I often recommend a book (The Dip)[http://smile.amazon.com/The-Dip-Little-Teaches-Stick/dp/1591841666] for work-related decisions of this form, but it applies to relationships as well.
Those feedback loops are real, and being mutually aware and communicative of them is necessary - it doesn't remove the temptation to sacrifice for your partner (IMO, that's a feature, not a bug), but it does let you see the reinforcement cycles and help you to choose which ones to damp and which to drive.
This thread is for asking the rationalist community for practical advice. It's inspired by the stupid questions series, but with an explicit focus on instrumental rationality.
Questions ranging from easy ("this is probably trivial for half the people on this site") to hard ("maybe someone here has a good answer, but probably not") are welcome. However, please stick to problems that you actually face or anticipate facing soon, not hypotheticals.
As with the stupid questions thread, don't be shy, everyone has holes in their knowledge, though the fewer and the smaller we can make them, the better, and please be respectful of other people's admitting ignorance and don't mock them for it, as they're doing a noble thing.
(See also the Boring Advice Repository)