sunflorally:

yes, you should be kind. you should be considerate and giving and caring and loving and nice to everyone you meet. however, when it gets to a point that people are not reciprocating your generousity and are taking advantage of your sweetness, you no longer have to treat them kindly. you can be a good person and say no to people doing you wrong. you should be kind, but you also should stick up for yourself in situations of injustice.