Would you rather he likes other girls pics or not

I see this a lot where guys when single will like the pictures, stop when in a relationship, then start liking other girls pics when single. And I was wondering your take on this. If he can freely like girls pics but in a respectful still all about you way, wouldn’t that diminish the temptation to look? Or would you rather he pretends not to notice other girls and not like the pics? I’m torn obviously as I’m single. It’s like when you tell a kid not to eat a cookie after seeing a cookie, they become hyper focused and often sneak around or just stares at it. Or is it just our insecurities