No one deserves to be attacked. Just remember that what you put out will come back to you. If you go all your life putting bad out, then you start trying to put good out, you'll notice things will gradually start to change, because we live in an intelligent Universe. It worked for me.
If you feed into someone else's negativity, it will likely backfire on both of you because you're both contributing negative energy.
Life is cyclical. Always oscillating between high and low points. It's inevitable. And since it's bound to happen, it's all about how you ride the wave.