People copying what you do

I have 2 close friends that have seen what I do for my business and although 1 of them does it for crafting, the other is now starting to copy my business and do what I do. She has her own very different crafts that she sells and now all of a sudden she’s got a press, a special printer and items to press and is going to start doing what I do. Which makes me feel like shit that they’ve watched and heard a whole bunch from me, went behind my back and is doing it themselves.. they keep sending photos of everything they are making and think it’s so easy.

There’s just too much that I don’t want to type out. I feel betrayed, hurt and it’s kind of maddening. Has anyone else experienced this?? What do I do? 😔

Edit to add I’m not upset she’s making things similar to mine or that other people are selling the same things as mine. It’s more than that 🙄