Why do men have sex with me then ghost me?

This has happened for the third time
The first time was someone I worked with he was obsessed with me we had sex for around two weeks then he just went weird. The time we had sex first he lasted 3 seconds then the next time was about 5 mins and much better.

Then I had a date from someone who messaged me who is never met on social media and we had sex. He lasted about 3 seconds and I accidentally laughed at him. He did try to come over again but I was alseep by the time he got to my house. Then he tried again but I was fed up with him taking ages to reply.

Then the third was someone messaging me again and he lasted a lot longer about 5 mins first time maybe less. Then we had sex multiple times that night but again he’s ghosted me

Why does this keep happening? They all say I’m super pretty and the sex is amazing but then it ends like this. I do have 3 kids and don’t want a relationship and have said I’m not closed to it but not seeking it.

Am I that bad looking and the sex that bad?
Sex isn’t good and they don’t find me attractive
They did enjoy the sex it’s something else
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Why do men have sex with me then ghost me?
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