You largely covered why opiate's advice is not good with a very candid self assessment here. My impression is that he either has not had or is not into long term commitment, either. Apples and Oranges.
If you are playing the long game, which a lot of us over 30 "betas" are, different rules apply and you learn to let little shit slide, even if its obvious crazy. Women at this stage will ignore farting in bed and public ball scratching for much the same reason. Expecting perfection from other people is just Don Quixote chasing wind mills and the sooner certain narcissistic people realize this the happier they will be. Of course that does not mean you don't throw some feelers out there to check for obvious signs of extra strength crazy, it just means you tough out the minor bouts of it from time to time if the important stuff is all there.
@Khane- Serious question not meant to be insulting, but how long exactly has your longest relationship gone and who dumped who?