Because 3rd party apps provide a native app experience to the mobile. Its far nicer to browser with all kinds of gestures than be limited to a 3rd party web browser

I have recently nuked relationships over different values. It hurt but I know in my heart it was the right thing to do. I dont want to be the type of person that has a person like that in my life and covers for them.

Consider if this person is worth sacrificing your personal values and morals for.