For the first 6-12 months there is sort of a chemical meltdown in your brain that overrides anything negative and you both feel it. Everybody thinks they've found the one for 6 months if you make it past the initial trial period. After that you go into a different phase of love at least for me. You start to notice more issues, you start being slightly less accepting. You think do I really want to marry this person, maybe you've discovered a critical flaw. Are you settling or is 90% good enough? That kind of thing.....