If someone demands an explanation why you cut contact with them, do they actually care?

Let me give an example:
I cut out two friends because they kept accusing me of being whore and other things that weren’t true. And they would say they were just “joking.” One day, I decided I had enough and cut contact with them with no explanation.
One of my “friends” noticed and she came up to me AT WORK where there’s people around and basically DEMANDED to know why I cut contact with her. And since there was people around, I didn’t feel comfortable talking about it where they can hear. In order to get out of the situation, I came up with a lie just to make her go away.
I didn’t want to lie but the way she came up to me I felt she didn’t deserve an explanation after that.
Updates
8 mo
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If someone demands an explanation why you cut contact with them, do they actually care?
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