Luke your betta is just a male veil tail with some fin damage you can tell its a male by it body and tail.
Swam some females make nests too. Its not very commom though. I read about it online it some females believe they are males and build nests.
Thanks for the reply. But my females looks like Lukes one. None of them behave like males and I bet Lukes other females are similar to his supect Plakat one?