That is NEVER a good
ground for marriage. If this happens to any known good friends, I
will definitely object the marriage. Can't even handle BGR, with
certain degree of maturity, and wanna move onto marriage?
BGR is lacking so much elements to maintain harmony, lets not
pretend that a marriage could change everything - in fact, it doesn't and
worst, it implicate more tension within. There are
many levels in couple's argument, but a constant break-patch style
of communication NEVER promote marriage harmony. Very difficult
ground to steer and maneuver... Uranus too strong. 
Cheers