What should I expect dating a mormon girl?

We've been going out for 2 weeks and i found she was mormon. I've heard plenty of horror stories about mormon people having crazy beliefs, but she seems pretty relaxed. I know every person is different but are there any beliefs or behaviours i should know about. I don't want to offend her and i dont know much about the religion and its rules/customs.
What should I expect dating a mormon girl?
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