All depends on your commute. It hardly ever happens for me, but I live where my wife has a 1 mile commute, and where I have a four mile commute. Neither of us takes freeways to work.
Even if your commute is along a bad stretch, if you can be somewhat flexible with work hours (ie, work 7-4, or say 10-7), you can avoid some of it.
It's not doom and gloom like we are making it out to be, though if your fiance is working in Buena Park/City of Industry and you are in Culver City, that's about a 30-mile difference and presents logistical challenges in terms of where you live and traffic situations/patterns.
But from Culver City, taking the 405 to the 105 in the morning shouldn't be too bad, and then you can take all those smaller freeways (105/91/710/110 or some combination thereof). I have to think there is a better route there then just blindly taking the 10 / 5 or the 405 through long beach.