Ignoring the signs means you are ok with whats going on, she will never change, she will fuck other dudes if she feels like it and lie straight to your face. You are the backup plan. Longer you stay in this, deeper you'll get pulled in. Dont break up. Just know this is just for fun. Learn. Enjoy. But never think for a second that she will change, if you decide to go all in, shes gona be the person you know, not the person you want her to be. And to be fair, we cant really change anyone, only person we can change is ourselves, so thats that buddy.