there is no such thing as "meant to be". People make their own choices. They choose who they are going to be with, and then they choose whether or not to make the relationship work.
Some relationships take more work than others. Some relationships are more rewarding than others.
BTW: Those two factors are not neccessarily interlinked, in my opinion.
My current status: june 2006. Wife ran out and filed D. Finalized Jan 11, 2010, after 12.5 years M. 3 wonderful sons caught in the middle