Maintaining a Christian marriage in the 21st century is not an easy task. Divorce rates are at an all time high. Out of every 10 couples you know, 5 of them will be divorced. That is a dangerously high rate, and as a consequence, many children are left with only one parent. Divorces cause lifetime grief for the husband, wife, and children of any split. A happy Christian marriage requires patience, understanding, and a true desire to maintain this divine partnership.
If you are traversing hard times with your spouse, there are plenty of good resources out there for your to learn from. I have been lucky enough to come into contact with one such site, and I recommend you check them out for christian marriage tips.
If you are planning on marrying two of your friends as a minister, you may also want to consider minister ordination online.