Do you think its rude of me to say that?

My sister always tell how my neighbor got hospitalized she would mention it many times a day I told her to stop telling me that cuz I dont even care they dont even care about us when we get hospitalized. It seems like she really cares about her she called me selfish for not seeming to care to her but then again I told her I only care about people who cares about me.
Do you think its rude of me to say that?
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