She said to see others but is being a little weird now?

The woman I’ve started dating is also seeing someone else. She said she doesn’t want me to get attached and to see others as well as her.

I slept with another woman and told her about it as she tells me. She’s not been how she normally is since. I’m guessing she’s jealous? I don’t get it though, she’s seeing others and didn’t want me to be attached?

She said to see others but is being a little weird now?
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