Sorry OVM, But this is the law in USA the GC it is for 10 years and you have to renew - This is noe to the Border officer this is USA LAW.
And the FAST and the GC nor have to do any thing about each other , ok , when you married USA citizen you reciving a GC onlt temporiry for a 2 years , thay have to find that this marrige is a normal not only for a dokumrnts like most people do........than whne you pass all INS requarmnts you will get a GC for a 10 years. I don't know whay your FAST it is only for 3 are is 5 yeras period. Everytnimg you have to renew , OK like the driver licensec the same with a GR or
PR or a Passport . Canadian passport are for a 5 and USA 10 years............But don't things that your FAST help you for a your GC ..........read Immigration law, and I don't thinhgs that al ways you and youer wife are acceptian in this world , yes the law it is for everyone the same , only some people know how to play with law and some no...............