We’ve been engaged close to four years and never made any plans til now. We’re getting married July 2021

My sil was jealous when we got engaged and even threw a fit because “she had to be engaged first” but it was ok because “she’ll make sure she gets married first”

She got engaged last year and is getting married in June 2021 and has had her date set a few months before us.

She is now trying so hard to cause arguments with people and be petty trying to out do me- wanting to know details about my dress etc she’s always asking fiancé questions like these

I definitely don’t see her as a threat at all- in fact I could care less

But is it wrong of me to have my wedding so soon after hers?