Why would Chris Brown Post Karrueche's Butt online if he truly loves her?

I don't get this new culture.So Chris Brown has posted a pic of his girlfriend Karrueche online.

But this is not just any ordinary pic.It's a pic of her BUTT in it's full glory leaving nothing 

to the imagination.Now Chris Brown claimed recently he loved Karrueche,and she was a 

keeper.So i'm assuming one day marriage will follow and maybe kids.So why would Chris Brown 

wanna post Karrueche's butt online for everyone to see? Guys are very protective of those 

they love.Even looking at their women when they are fully dressed have been know to
 

cause fights.Some have been killed,stabbed and maimed in the process.."What chu 

looking at"? is a common line you hear then it' mayhem..so bearing all this in mind,i ask

 "why would Chris Brown wanna popst Karrueche's a woman he claims to love,BUTT online"?