Decipher a Guy Behavior

[cindylo]

What does it mean when a guy whom you have made out with uses another girl photo as his phone's wallpaper few weeks later. But he said the photo means nothing, and it's just some random girl photo he found on the internet and he doesn't know about her? Is this abnormal?

[Drake]

If he doesn't know about her, it okay because it might just be a fantasy for him. However, if it's a girl he knows, then everything is wrong with that because it proves that's the girl he actually loves.

[Vivian]

It's normal if he doesn't know the girl, but abnormal if he actually knows the girl.