Need rls advice

New to this app idk how it works but i need someone who is good in relation advices to help me on this, my gf goes to uni and like i trust her alot i would trust her with my life even. The thing is we are muslims and i ask her to wear abaya as its religious and this and that but in the end its because i dont want guys having " something" to look at so they can flirt with her or what if she doesnt tell me and it just i get jealous of guys around her even and we argue over this so much that she doesnt wanna wear abaya and this and that and i wanna know how can i overcome this jealousy, it will bit me later on life too when she has to do a job and i will get jealous and i cant force her to quit hee job. So yeah anyone with solutions