The long time a couple has been fun together, the simpler it is for them to get stuck in a sexual performance: when you develop an awareness of what "does" for your partner, you sometimes find that you're just going through the motions.
Crises and adversities happen in everyone's life. No matter how hard we try to avoid them, there are some situations that we cannot avoid completely, and all we can do is buckle up, wait and do our best for a while.