What type of woman cheats on her boyfriend right after he gives her a promise ring?

What's a promise ring? Is that the same as an engagement ring? Where I come from those used to be a serious investment.

If it’s a serious, committed, high-quality relationship, a material gift is not necessary and “cheating,” however it’s defined in this case, wouldn’t be an issue.

This is a symptom of a doomed relationship that’s not meant to be.

an American woman

Not the one to whom I would give such a ring, I'd hope...

What does the ring signify/promise?

Someone not ready for a relationship.

A horrible human

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