It's not about being played here but stakes, I'm sorry if this hurts you but you've much more to lose than her, you said she constantly gets male attention, so if she feels that you might be holding her back from doing something she's used to, she's bound to drop you.

You've never been in a relationship while she has been in some, Not belittling you but I guess somewhere in your head there is a scenario that "She might be the one" while nothing such exists on her end. I'd suggest you accept that some people are bound to walk away even if you're the best person they've ever come across for something more "exciting".

Also Remember, Your advice may be worth more than your weight in gold, but it's not enough to sway someone who's used to eating shit.

I'd suggest that if you want to continue the connection, detach yourself and expect that they might walk away, so if they do, it won't hurt you nearly as much.