<human>: Can you condense the text into a few key points?

I (33) had a major falling out with one of my cousins (22?) and have no plans to contact her again. We were never close and probably spoke once every few years. My mother (54) cannot accept that I do not seek or desire reconciliation with this young woman (her sister's daughter) and seemed quite chilled when I let her know that I am not going to trouble myself with a person I don't care about. I was speaking in honest terms, but I really don't see the point in reaching out to a person that I don't talk to or was never close to at all. My mother is of the opinion that if you share DNA with a person, you should move heaven and earth to have a relationship with them. I disagree and she told me that I "sound like my dad" (sociopathic ex-husband). I think this was pretty unfair and wanted to see what you all think.
<bot>: My cousin whom I was never close with and I cut ties after an argument. Neither of us desires reconciliation, and mother thinks I am acting like a sociopath because I'm ok with not having cousin in my life.