Shel,
I am sorry that you are feeling so frustrated. It must suck to continue to be the responsible one and keep it all together. I would definitely be frustrated...what keeps you from setting some boundaries regarding the amount of money your partner contributes? If not money, than chores around the house? There's nothing that says you have to work and do all the chores by yourself.
If he did more around the house, would you feel better? I hope you find an acceptable middle ground for now. Until then, vent away and let it go. No need to grab it back once you've gotten it off your mind.
Peace,
Petunia