Like the title says. Whenever this girl pisses me TF off I just withdraw attention and do something else. I don't act butthurt I just leave and become scarce. Go to the gym, do daygame/night game, hangout with friends, even just put in my headphones and play videogames.

Now what she tries to do is ask for my phone and say the reason that I'm acting indifferent towards her is that I'm cheating and she starts accusing me trying to get me to give her attention by putting me on the defensive. The only reason I don't want to give her my phone is because I have private interest (anime NOT HENTAI, music interests, things from my childhood, etc) that I dont really like to share with anybody not even my close friends.

What should I do on that scenario? Just give her my phone anyways? I feel like that's too supplicating.