De peur que versus pour que?

Bonjour Jennifer ! This sentence "Il viendra de peur que tu ne sois pas vexée." is very weird in French, as it means "He'll come for fear that you won't be vexed." . "Pour que" here marks a purpose "in order for you not to be vexed / so that you won't/wouldn't be vexed". Using "de peur que" could work here, but it would bring a nuance of meaning, as it would be saying that he's anxious that you'd be vexed, rather than he's acting to avoid your vexation. The correct sentence with "de peur que" would be : "Il viendra de peur que tu *ne* sois vexée." (Here it's the "ne explétif", see: What is the ne explétif and when to use it in French ) I hope that's helpful! À bientôt !