I know it sounds harsh reading those words, and I know where it is comming from.
I have been through this too.
It is a stage i think born out of lingering resentment that you feel like you have had to put in all this extra effort, and its still not perfect. Yet those who seem to have an "easy" life in your eyes seem to complain about stuff that seems trivial in comparison to yourself.
I moved on from this when I developed true Acceptance, I am not a martyr, this was my choice., I am not 'entitled' to a gold star for effort. Many people are going through harder stuff than me, but it is not visible. Just as others do not see the depth of my issues I may not see the depths of theirs.
At the end of the day we are not special, we have just been forced by circumstances to learn more about human nature that we would have otherwise glossed over.
I am endevouring to be a better me and that should not be benchmarked against anyone else, otherwise that actually makes me a lesser person, as that in itself is a personality flaw.
If you feel this then maybe that is an area you need to work on. Focusing on you rather than your partners need.
Still

for putting in all the hard work, it is a long journey and there is always something else to apply your efforts on.