Is it worse if your partner cheats with a stranger or someone you know?

U find out your s. o. cheated. And she admits it. And u end it. But what is worse to you, 1) u finding out that it was a random stranger, or even someone u don't know, or 2) someone u do know pretty good. My opinion I think it's worse when u know him. Not only did she cheat, but now she also makes u look stupid.
Is it worse if your partner cheats with a stranger or someone you know?
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