My boyfriend saved a picture of another girl on his phone. What does it mean?

There is woman who is doing yoga and pole dance on instagram. I saw some saved videos of her in my boyfriend's phone and some yoga poses photos where her booty seems very nice. What does it mean. I even don't want to ask him. I saw that things unsecretly he even didn't hide them in his gallery.

My boyfriend saved a picture of another girl on his phone. What does it mean?
Post Opinion