You always have to set boundaries and even then, boundaries are shaken and have to be rebuilt stronger than before with certain people.
Always set boundaries. It’s called self preservation & self love & self care. Without self, how can we be expected to help others? We must protect our own temple before attempting to help rebuild others. ~ Amber Van Sweden
Taking advantage means a selfish way of thinking only himself or themselves. It doesn’t help at all. The sure thing is to learn to say no if someone makes you feel uncomfortable in a given situation or decision learn to trust your instinct to avoid being abused. ~ Ram Angeles
If you allow people’s cruelty in your life 
People who aren’t worth our time 
The fragrance of flowers 
People who belong in your life will find you