can't catch a damn break

ever get that moment where everything seems perfect,and then one thing makes it come crashing down? is that bad of me,that i find deal breakers in situtations,that i find that something that crosses the boundary between perfect and dismal? i don't know what to think,i feel at times i'm being too severe,and others too lenient. god damn,i just want some balance and stability,thats all i ask,please?