Young man needing help making the perfect pie crust for an awesome lady

Made a promise to the love of my life I’d make her a pie. I never got the time while she lived close to make her this pie. Tomorrow is her last day here before she moves across the country. I want to fulfill that promise and surprise her before she leaves. She’s everything to me and adores cooking/baking. So I’m really hoping she loves this. I’m new to baking, I got a simple recipe online (butter, flour, pinch of salt, cold water). But I’ve seen other videos online where people would add an egg or other stuff to their pie crust. Just would like to know everyone’s opinion on how to make the crust. Want this pie to be absolutely perfect for this woman. ( making a blueberry pie by the way) thank you in advance for any help!!