All relationships have its share of troubles.
We can repair a vehicle a couple of times. But if it is constantly giving us headaches and failing us, then it is time to abandon it and look for other modes of trustworthy transport. Some relationships can never be mended, it is better to ignore or drop them and move ahead.
A true partner is a rock solid support system.
There might be someone better waiting for us. We need not hang on to an abusive relationship just for being in a relationship.
To stand by one another during rough weather is the mark of a true relationship.