Guy's Behavior

What does he watch in his phone and why he change?

Teenage boy spend all his time on his phone, and he starts playing on his phone when he sees me around, when I open his accounts his Instagram account I saw that he starts follow many girls and many random girls, and I see he doesn't study as well as he do, but he always goes to lessons and looks at every girl and stare at thier ass and their body, and he looks at me too and my body but I ingore him cause he change these days that what he do, what does he watch in his phone and why he change?
What does he watch in his phone and why he change?
Post Opinion