If we tell ourselves that something which has happened to us is bad, we will react in a negative manner. We might think "Why me?" or perhaps "What did I do to her?"

Try not to act from aversion. It is said that we should turn afflictions into bodhi, into awakening. We can use this unfortunate experience to deepen our understanding that nothing is real, that everything is temporary and changing. And if something is ever-changing and unreal, then so are our unwise reactions to it.
 
Also, sometimes, what we first thought was misfortune turns out to be good fortune in disguise.