Geesh, snap out of it man. What you have is a play toy, not a decet woman that will stick with you or even care for you.
I've dated tons of those: just to have fun, not get serious with. You think she is not texting other cocks after or during conversations with you? Think she only text him? lol
These types are only good for banging.
Real woman, put their ex-boyfriends behind them and leave them in the past because they're wanting a future with who is in their present and now how to be respectful and tell other guys to back-off and leave them alone.