Relationships

Okay so I have a question for the females out there... do you guys get upset or mad when you find out your man has been liking or looking at other girls pictures? Like especially ones where they are like half naked in them.. or when he looks at girls that you feel like are better looking then you cause I feel like that is what he wants & im not good enough, is it bad that I feel insecure by this??? All answers welcomed!! I’m not sure if this a place for this, but I’m curious if others get mad or am I crazy?